Did you ever wonder what happens in our body when we take a medication? and what happens when we take two? or three? or twelve medications? 40% of Americans over the age of 65 take 5 medications on daily basis. at the age of 70, the average is 8 medications every day. The chances of a drug interactions increases sharply when taking more than 5 medications. Here is a nice short video explaining how our body mechanism works, and why taking medications together can cause adverse reactions and side effects.