Have you ever heard someone mention that “what does not kill you makes you stronger”? While that statement may hold true for some situations in life, it is far from universal. Something that does not kill you may still reduce your overall quality of life. Putting your body through regular unhealthful situation does not build immunity to those behaviors; it reduces your overall quality of life.
I often hear it expressed anecdotally that reduced symptoms associated with unhealthful situations must mean an improvement in health (for example, getting used to cigarette smoke, building a tolerance to alcohol or dairy products). Actually, what is happening is a lowering of your overall quality of life – or, you are getting used to feeling badly.
Taking care of your body through appropriate rest, reduced stress, eating healthfully, and regular exercise can redefine your definition of what it means to feel good. Do not accept regular illness and injury; rise above it.