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G L O S S A R Y
G L O S S A R YClear definitions for a longer, healthier life—From A to Z.
The science of aging well is evolving fast, and we’re here to help you keep up.
Don’t see a word you want to know more about? Write and tell us.
A
Gentle movement between workouts to aid in muscle recovery.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
Herbs or compounds that help the body resist stress.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
The risk of death from any cause.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
Reducing inflammation, which contributes to better overall health.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
The body’s process of cleaning out damaged cells and regenerating new ones.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
A powerful emotion of wonder that enhances well-being and connection.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
B
Exercises that improve coordination, reduce fall risk, and enhance mobility.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
Optimizing biology using science, technology, and lifestyle changes.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
A key indicator of bone strength and fracture risk.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
Intentional breathing exercises that reduce stress and improve focus.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
Physical or emotional exhaustion from chronic stress.
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C
A marker of inflammation in the body linked to chronic disease.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
Your body’s internal clock that regulates sleep and wake cycles.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
The brain’s resilience to aging and damage through learning and mental stimulation.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
Cold water immersion to enhance recovery and reduce inflammation.
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A hormone that helps manage stress, energy, and alertness.
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D
The most restorative sleep stage where the body repairs and grows.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
A healthy gut that supports nutrient absorption and immune function.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
A neurotransmitter linked to motivation, pleasure, and learning.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
Movement-based stretches that prepare the body for exercise.
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E
The lengthening phase of a muscle contraction, important for strength and joint health.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
The ability to navigate life’s challenges with flexibility.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
Mood-boosting chemicals released by the brain during exercise or joy.
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The relationship between calories consumed and expended.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
The study of how lifestyle influences gene expression.
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Positive stress that enhances growth and resilience.
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F
Connective tissue that supports muscles and helps with movement.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
Muscle fibers used in quick, explosive movements.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
The period when eating is restricted during intermittent fasting.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
A state of optimal focus and performance.
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Strength that translates to everyday tasks and movements.
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G
A calming neurotransmitter that supports relaxation and sleep.
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A term for muscle’s role in absorbing glucose to regulate blood sugar.
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How a food impacts blood sugar levels.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
A key marker of strength and predictor of longevity.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
The two-way communication between your digestive system and brain.
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H
The number of years you live in good health, free from chronic illness or disability.
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Conditions affecting heart health and circulation.
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A sign of nervous system balance and stress recovery.
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The increase in muscle size through training.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
I
Your body’s response to an illness, injury or something that doesn’t belong in your body (like germs or toxic chemicals).
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
A condition where cells in the muscles, fat, and liver don’t respond properly to insulin, leading to impaired insulin sensitivity and potentially prediabetes or type 2 diabetes.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
How effectively your body uses insulin, which regulates blood sugar levels
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
A group purposefully designed for shared values and support.
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An eating pattern alternating between fasting and eating periods.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
J
Extracting juice from fruits and vegetables for nutrition.
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K
A metabolic state where the body burns fat for fuel instead of glucose.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
How muscles and joints work together during movement.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
L
The exercise point when lactic acid starts to accumulate.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
Muscle and other non-fat tissues that contribute to physical function.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
Medical care that focuses on preventing disease with lifestyle changes.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
The brain area responsible for processing emotions, memory, and motivation.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
Living a long life; influenced by genetics, environment, and lifestyle.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
A massage technique that encourages the natural drainage of the lymph, reducing swelling and promoting detoxification.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
M
The body’s ability to efficiently switch between using carbohydrates and fats as fuel sources, adapting to changes in energy supply and demand.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
The community of microorganisms (bacteria, viruses, fungi) living in a particular environment, especially the gut.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
The practice of paying attention to the present moment with non-judgmental awareness.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
Organelles in cells responsible for producing energy (ATP), often called the powerhouse of the cell.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
The ability to move freely and easily through a full range of motion.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
The total weight of muscle in your body, critical for longevity.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
N
A molecule involved in cellular energy and longevity.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
The brain’s ability to change and adapt through experience.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
A food’s concentration of beneficial nutrients per calorie.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
O
Essential fats that reduce inflammation and support brain health.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
The ideal amount of weight or resistance for safe and effective strength training.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
A hormone that promotes bonding, trust, and connection.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
P
The part of your nervous system that supports relaxation and digestion.
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A deeply meaningful and awe-inspiring life moment.
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The transitional period before menopause when hormonal shifts begin.
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Plant compounds that act as antioxidants.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
The stage of life after menopause, marked by lower estrogen levels.
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Live bacteria that promote gut and immune health.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
Gradually increasing workout intensity to build strength and endurance.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
Q
The large muscles on the front of the thighs.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
A calm, focused state free of mental chatter.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
R
The use of low-wavelength red light to promote healing.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
The practice of cultivating mindfulness within the context of engaged, person-to-person relationships.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
The ability to recover quickly from stress or setbacks.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
The number of breaths taken per minute.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
The body’s natural relaxation and recovery mode.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
S
Age-related loss of muscle mass and strength.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
The ability to manage emotions and actions consciously.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
Habits that promote quality sleep.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
A mindful, intentional approach to daily life.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
Resistance-based exercise to build muscle and support healthy aging.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
The act of thriving and optimizing health, vitality, and purpose as you age.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
A nutrient-rich food that offers health benefits.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
T
The body’s process of generating heat, often through exercise or cold exposure.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
U
A gut-derived postbiotic compound produced when intestinal bacteria break down ellagitannins—polyphenols found in foods like pomegranates, walnuts, and raspberries. Urolithin A supports mitochondrial health by stimulating mitophagy, the process of clearing out damaged mitochondria so new ones can form.
The only clinically tested Urolithin A supplement is from Timeline, formulated to support mitochondrial health and help you age stronger.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
V
The health of the vagus nerve, which helps regulate stress.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
A vitamin essential for bone health and immune function.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
A measurement of how much oxygen your body can use during exercise.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
W
Mindful walking to calm the mind and body.
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A collection of health habits, supplements, and routines.
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Steady background noise that aids in sleep and focus.
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X
Foreign compounds, like drugs or pollutants, processed by the body.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
Y
A deep relaxation practice often referred to as yogic sleep.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
Z
A practice focused on meditation, simplicity, and mindfulness.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
A mineral important for immune function and wound healing.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
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AllLow-intensity endurance training that builds metabolic health.
All glossary terms are selected independently and objectively by the editors. Super Age may receive a share of sales via affiliate links in content.
