Whats the meaning of life from doctors point of view?

Same as any body else's view point. For healthy diet: http://www.choosemyplate.gov/., exercise 30 minutes/day, drink enough water daily so your urine is mostly colorless, have safe sex, no tobacco alcohol weed or street drugs. Get HPV, Flu and Covid vaccines. Wish you good health!

Psychologists report that it is a balance between 3 concepts. COHERENCE, understanding that things happen in your life for a reason; PURPOSE, belief that you are alive in order to do or accomplish something; and SIGNIFICANCE, the sense that your life matters. Those with a higher level of all three are less depressed and have higher positive affect.