You are currently of 27 years old and there are grey hairs starting to appear in your head but sometimes grey hairs could be due to some nutritional deficiencies and could be due to genetics so every time grey hairs is not an indication of aging. I can understand your feelings that you don't want to become weak and you want to remains as stronger as you are now that's why you are afraid from aging that's why you should really adopt these nutritional and physical changing in your life so that you may delay your aging process.

I wish you good luck in your participation