Bro as per knowledge i wil give u some tips : I understood u are a traveller. U need to keep your body healthy as you are traveller. My suggestion wil be : 1. Don 't drink water immediately after eating because your digestion processs will become slow 2. U can sip hot water while eating. 3. Try to take hygienic curd, Buttermilks more as you are a traveller, its must because risk of contacting bad bacteria is little bit more so my suggestion take probiotics and Prebiotics more. 4. How to improve naturally immunity : 1. Take probiotics and prebiotics more. 2. Be hygiene 3. Use own bottles and dont sip your own bottles 4. Consume hot water and hot food 5. Do excercise and to keep yiur immune high 6. Dont eat food when u are not hungry. 7. Drink water after one hour after taking food. 8. Avoid consuming liquids after taking solid foods because it may slow up natural Digestion. 9. Have good amount of sleep 10. Be happy Main thing is be positive and avoid negative thinking. Positive thinking is best medicine for killing negativity but need to know about NEGATIVITY also as you are a traveller. This information is for you because i hope u will deliver good content for all the people and especially for our country. We believe in you. Deliver unique content bro. All the best bro.