Can we have this in a pill? Science telling me to go fasting is same as if science told me to go walk instead of providing an automobile. I know that it sounds

Can we have this in a pill? Science telling me to go fasting is same as if science told me to go walk instead of providing an automobile. I know that it sounds unpositive but telling people how to live didn't work for the last 2000 years, probably more. They fail at this always. But giving them tools help a lot.