Health definition by WHO (World Health Organization) - 'Health is a state of complete physical, mental and social well-being and not merely the absence of disease or infirmity.'
So, rather than aiming at a balanced diet or a balanced workout or techniques to balance your mind; one needs to find a balance between all these three factors for healthy living. Here are some tips on staying healthy physically and mentally, which I have personally tried and tested.
How to Stay Fit Physically?
Diet: Try to eat as much as fruits and vegetables as you can. Fruits and vegetables provide enzymes to the body, which help to absorb the nutrients from your meal which is your main course. Drink as much water as possible throughout the day. The requirement of water is 1 liter per 45 pounds of weight. Try to eat as many types of cereals you can. Keep enhancing your diet plan by learning about different healthy foods.
Exercising: There are very few people who will go for exercising to maintain their health. Mostly people will initiate in some exercise due to weight loss or some other health problem. No matter which type of exercise you take up, whether it is just walking or jogging try to follow it regularly. The best exercise in my opinion is swimming which is almost injury-free, boosts metabolism, helps to build lean muscles, and improves flexibility.
Advanced Tips: If you are suffering from some health condition, which is as minor as the common cold or something serious like a sports injury, then try to understand the causes behind the health condition and try to avoid the causes, rather than popping pills to treat the health condition. For example, to avoid common cold load yourself with vitamin C rich food (Indian gooseberries, amla is one of the best source of vitamin C). To prevent any muscle soreness or injuries, make sure you do a good warm-up before any exercise and perform stretching after the workout.
How to Keep Yourself Healthy Mentally?
Breathing: Deep breathing is not only good for your lungs, but also can be used to calm your mind. Many meditations involve breathing as a technique. Just breathe your way out through stressful situations. By which I mean, take a deep breath whenever you get stressed, and breath out. Repeat it around 10 times.
Meditation: There are various techniques of meditation. Instead of following a spiritual or religious person, try to experiment with different techniques of meditation, and then whichever you feel suits you try to practice that technique for an hour a day. The various techniques for meditation are tantra, yoga, Zen, vipassana, Tibetan, Buddhist, etc.
Take a Break: This is something which everybody needs and should use for stress relief. Whenever you think something you have become overloaded with your work, studies, or responsibilities take a break. Plan a small vacation alone or with a friend or go to a garden and switch off your cell phone. Just forget everything and enjoy watching the trees, birds, people, etc.
It will not always be possible to follow these tips on a daily basis or regularly. So, try to eat as much healthy food as possible, get around 20 minutes of exercise minimum, whether it is just plain walking or climbing stairs, and try to learn some meditation and practice it for minimum half an hour a day.