I read a lot on this field and others. A nice article I read yesterday mentioned a wise advice. A big part of keeping healthy is to avoid the bad stuff. For example too much drinking and smoking. Doing bad exercise of no relaxation work afterwards (holding on to the tension built). Many people train to exhustion, run to their limit and so on. They sleep so little they yawn all day and later expect the body to perform well into old age or in a real trial when it has been destroyed and depleted over years. Take a look at yourself and see if you are doing anything such as pumping up a bicep to look good or doing some exercise till it hurts and feeling the burn. It creates an imbalance and as we are a complete system we will pay for it one day or today.