Want to be healthier in your 70s? 30s Habits to Develop

Want to Stay Healthier in Your 70s? Habits to Build in Your 30s

Regular exercise, consistent sleep, balanced nutrition, and effective oral hygiene may help preserve physical strength and cognitive health as people grow older. Starting early can help, although it cannot guarantee a particular health outcome.

Aging brings changes to the body that can affect strength, mobility, sleep, and memory. The likelihood of developing chronic health conditions also increases with age, but the extent of these changes varies considerably from person to person.

Researchers say that lifestyle choices made earlier in adulthood can help support healthier aging. While it is never too late to adopt healthier habits, a person's 30s can be a useful time to establish routines that may benefit them over the following decades.

Muscle strength, bone health, and metabolic function can change as people age. Building and maintaining physical fitness, eating a balanced diet, and getting enough sleep may help protect against some of the effects of aging.

"Based on what we now know, most people could expect to live to 90 or even 95 in good health if they were to optimise their lifestyle," says Eric Verdin, president and chief executive of the Buck Institute for Research on Ageing in California.

That is an optimistic assessment rather than a guarantee. Genetics, existing health conditions, living circumstances, and access to healthcare also influence how people age.

Build strength and stamina early.

One way researchers study healthy aging is by examining master athletes—people who continue to compete in organized sports from their mid-30s onwards, often into their 60s and beyond.

These athletes can offer insights into how maintaining physical fitness may affect the aging process. Research has linked higher levels of cardiovascular fitness and muscle strength with better physical function, although competitive athletes do not represent the wider population.

Paul Morgan, a senior lecturer in nutrition and metabolism at Manchester Metropolitan University, says maintaining a strong physical foundation may help people retain their independence later in life.

Building aerobic fitness, improving flexibility, and strengthening muscles can all contribute to that goal. Exercises that work the legs and improve balance are particularly relevant because lower-body strength and mobility help people walk, climb stairs, and recover their balance.

Falls can have serious consequences for older adults, particularly those with reduced strength or balance. Maintaining physical activity throughout adulthood may help preserve the abilities needed for everyday tasks.

People do not need to become competitive athletes to benefit. Walking, cycling, swimming, dancing, and recreational sports can provide opportunities to stay active. Strength training and balance exercises can complement cardiovascular activity.

A brisk walk after a meal is one accessible option. However, the right level of activity depends on a person's current fitness, health, and physical limitations.

Protect brain health through everyday habits.

Physical health is only one part of aging well. Researchers are also examining how lifestyle choices relate to cognitive performance in later life.

A 2025 study published in the journal Age and Ageing examined daily activity patterns and cognitive performance in 648 older adults without cognitive impairment. It found associations between the amount of moderate-to-vigorous physical activity participants undertook and certain measures of cognitive performance, including processing speed, working memory, and executive function.

The study was observational, meaning it identified associations rather than proving that exercise directly prevented cognitive decline. It also did not establish that adopting a particular exercise routine in one's 30s would produce the same outcome decades later.

Even so, the findings support continued research into physical activity and cognitive health.

Oral hygiene may also deserve attention. Regular brushing, cleaning between teeth, and attending dental check-ups can help maintain gum health. Periodontal disease has been associated with cognitive decline in some studies, although the relationship is complex and does not establish that gum disease directly causes dementia.

Avoiding tobacco and limiting frequent consumption of sugary foods can also support oral health.

Make sleep a consistent priority.

Sleep is essential for everyday functioning, and persistent sleep problems can affect concentration, mood, and physical health.

Maintaining a reasonably consistent bedtime and wake-up time may help support the body's circadian rhythm, which regulates the sleep-wake cycle and other biological processes.

Verdin has highlighted sleep regularity as one habit worth prioritizing. He says he uses a nightly alarm as a reminder to go to bed rather than to wake up.

Consistency can be difficult for people balancing work, family responsibilities, and young children. The aim is not to achieve a perfect schedule every night but to establish a routine that allows sufficient, restorative-quality sleep.

Alcohol can disrupt sleep, even when it initially makes a person feel drowsy. Reducing consumption may therefore be one practical step for people who want to improve their sleep and overall health.

The relationship between sleep and long-term brain health remains an active area of research. No single bedtime routine can guarantee protection against dementia or other age-related conditions.

Focus on balanced nutrition.

Diet is another important part of long-term health. A pattern that includes vegetables, fruit, whole grains, legumes, nuts, and other nutrient-rich foods can provide the vitamins, minerals, fiber, and other compounds the body needs.

Replacing some ultra-processed foods with less processed alternatives may also improve overall diet quality, depending on the foods involved.

Researchers are investigating carotenoids, plant compounds found in foods such as carrots, sweet potatoes, mangoes, and apricots. These compounds have antioxidant properties, and studies are exploring whether dietary patterns rich in them are associated with healthier aging.

However, an association between nutrient intake and slower biological aging does not establish that a particular food can slow aging on its own. A balanced overall diet is a more useful goal than focusing on individual so-called superfoods.

Meal timing is another area of interest. Intermittent fasting involves limiting food intake to particular hours of the day. One approach, known as 12:12, involves a 12-hour eating window followed by a 12-hour period without food.

Some people may find a consistent overnight break from eating practical, but claims that fasting allows the body to switch directly from digestion to cellular repair oversimplify a complex process. The long-term benefits of specific fasting schedules remain under investigation.

Fasting is not suitable for everyone, and people with medical conditions, a history of eating disorders, or medication-related dietary requirements should seek appropriate medical advice before making substantial changes.

Start with habits you can maintain.

Healthy aging is unlikely to depend on a single intervention or a perfect routine. It is more realistically approached through a combination of regular physical activity, adequate sleep, balanced nutrition, oral care, and other health-conscious choices.

Starting these habits in your 30s may provide more time to build and maintain fitness, but people can benefit from positive changes at many stages of life.

The objective is not to eliminate the effects of aging. It is to give the body a better chance of maintaining strength, mobility, and independence for as long as possible.