No single sport is definitively “best” for your body, but the research points strongly in one direction: racket sports, particularly tennis, offer the most complete package of physical and mental health benefits. A large-scale Danish study tracking over 8,500 adults for 25 years found that tennis players lived 9.7 years longer than sedentary people, more than any other sport studied. That’s nearly triple the longevity boost of jogging (3.2 years) and more than double that of soccer (4.7 years).
But longevity is just one measure. The best sport for your body depends on what you’re optimizing for: bone strength, calorie burn, injury avoidance, or mental health. Here’s what the evidence says across each dimension.
Why Racket Sports Top the Longevity Charts
The Copenhagen City Heart Study, published in Mayo Clinic Proceedings, compared life expectancy gains across eight popular activities. The full ranking, in years of life gained over a sedentary lifestyle: tennis (9.7), badminton (6.2), soccer (4.7), cycling (3.7), swimming (3.4), jogging (3.2), calisthenics (3.1), and health club activities (1.5).
The researchers noted something striking: sports involving social interaction consistently outperformed solitary activities. Tennis, badminton, and soccer all require at least one other person, and they topped the list. Cycling, swimming, and jogging, typically done alone, clustered together at the lower end. The social component appears to provide health benefits that go beyond the physical workout itself, likely through stress reduction and the psychological benefits of regular human connection.
Team Sports and Mental Health
That social advantage extends to mental health in measurable ways. Research comparing individual and team sport athletes found that people who play solo sports report higher rates of depression, anxiety, and eating disorders than those who play team or partner sports. The proposed reasons are intuitive: when you lose a tennis match or a soccer game as part of a team, blame is distributed. When you lose a solo race or miss a personal goal, the failure feels entirely yours. Team and partner sports also create built-in social support networks that buffer against psychological distress.
There is one exception. Team sport athletes tend to have higher rates of problematic alcohol use and are more likely to use substances like nicotine and marijuana, possibly due to social drinking culture around team environments.
Calorie Burn Across Popular Sports
If weight management is your primary goal, several sports perform equally well. For a 155-pound adult exercising for one hour, vigorous swimming, fast cycling (14 to 16 mph), and running at 6 mph all burn roughly 704 calories. Singles tennis comes in somewhat lower at about 563 calories per hour.
These numbers shift with body weight. A 190-pound person burns around 863 calories per hour running, swimming, or cycling vigorously, while a 130-pound person burns closer to 590. The takeaway: for pure calorie expenditure, running, swimming, and cycling are virtually interchangeable at the same intensity level. Tennis burns fewer calories per hour but makes up for it in other areas like bone health, coordination, and the social benefits that keep people coming back.
Bone Strength: Impact Matters
Your skeleton needs mechanical stress to stay strong, and not all sports deliver it equally. Weight-bearing activities like running, tennis, and soccer force your bones to absorb impact with the ground, which stimulates them to maintain and build density. Non-weight-bearing sports like cycling and swimming don’t provide this stimulus, and the difference is significant.
A study comparing male cyclists and runners with similar age, weight, body composition, and nutrient intake found that 63% of cyclists had early bone thinning (osteopenia) in the spine or hip, compared to just 19% of runners. Cyclists were seven times more likely to have osteopenia of the spine than runners. If you’re a dedicated cyclist or swimmer, adding some weight-bearing activity or resistance training to your routine is worth considering for long-term bone health.
Joint Health and the Running Myth
Many people avoid running because they believe it destroys their knees. The data says the opposite. Recreational runners have a knee and hip osteoarthritis prevalence that is three times lower than sedentary non-runners. Competitive runners show an even more impressive four-fold reduction. Running appears to strengthen the cartilage and supporting structures around the knee rather than wearing them down, at least at recreational volumes.
This doesn’t mean running is risk-free, but the idea that it inevitably leads to joint damage is one of the most persistent misconceptions in exercise science. Sedentary living is far harder on your joints over time than regular running.
Injury Risk by Sport
Safety varies widely across sports. Injury surveillance data tracking rates per 1,000 hours of participation shows a clear hierarchy. Soccer carries the highest injury rate at 7.21 injuries per 1,000 hours. Tennis is much safer at 1.39 per 1,000 hours. Track and field (including running) falls in between at 2.35. Cycling sits at 0.59, and swimming is the safest of all at just 0.35 injuries per 1,000 hours.
For context, the average across all sports studied was 2.64 per 1,000 hours. If minimizing injury risk is your top priority, swimming and cycling are your safest bets. If you want the longevity and social benefits of racket sports without the collision risk of soccer, tennis offers a strong middle ground.
How Exercise Slows Biological Aging
Beyond fitness, regular vigorous activity appears to slow the aging of your immune system. During exercise, your muscles release signaling molecules that help preserve the thymus, a small gland behind your breastbone that produces the immune cells (T-cells) your body uses to fight infections and cancer. The thymus naturally shrinks with age, which is one reason older adults become more vulnerable to illness. Regular exercise helps maintain its function longer.
Emerging evidence suggests that weight-bearing exercises like running and strength training may be a stronger stimulus for immune preservation than low-impact activities like cycling or swimming, though all forms of exercise provide some benefit. This adds another point in favor of activities that involve ground impact or resistance.
How Much Exercise You Actually Need
The World Health Organization recommends 150 to 300 minutes of moderate-intensity activity per week, or 75 to 150 minutes of vigorous activity. You can also mix the two. Going beyond 300 minutes of moderate activity (or 150 minutes of vigorous activity) provides additional benefits, though the returns diminish. Muscle-strengthening activities on at least two days per week are also recommended.
In practical terms, playing tennis or soccer twice a week for 75 minutes, or running three times a week for 30 minutes, puts you squarely in the recommended range. The most important factor is consistency. A sport you enjoy enough to play year after year will always beat a “superior” activity you abandon after three months.
Putting It All Together
If you could only pick one sport, tennis makes the strongest overall case. It combines weight-bearing impact for bone health, full-body coordination, vigorous cardiovascular demand, and the social interaction linked to the largest longevity gains. Its injury rate is relatively low compared to contact sports, and it’s accessible across a wide range of ages and fitness levels.
But the honest answer is that no sport covers every base. Swimming is the safest and easiest on your joints but does nothing for your bones. Running is excellent for cardiovascular fitness, joint health, and bone density but lacks the social component tied to the biggest longevity benefits. Cycling is gentle and efficient but carries real bone-density risks if it’s your only activity. The strongest approach is to combine a social, weight-bearing sport like tennis, badminton, or soccer with some form of resistance training, and to choose activities you genuinely look forward to doing.