Can we not to have sick? The answer is “yes’. We are human being, made of flesh and blood, tender and soft, of course. If a hard article hit to our fatal part, we may die.
But, on the other hand, we are so strong that our soft body can survive up to eighty years, ninety or even to one hundred years, depending on no accident of any kind away from us.
To avoid any sickness to fall on your body, you need a very strong body resistance which you must build up through years of time. You cannot have a strong body overnight.
First: You must have ample sleep without which your body will be weak, easy to attract illness of any kind to inflict on your body. Therefore, you have to sleep enough to protect your body not to be sick.
Second: You must have food of nutrition. It does not mean that you have to eat expensive food. You just eat balanced food, vegetables and meat combined which will be good enough to make your body strong.
Third: You need to exercise your body regularly to make blood circulation circling smoothly. By exercise, you will have less chance to catch sickness. Especially, if you are an old person, you have to exercise as part of your life to prolong your living days.