👉 caffeins is a type of compound that is commonly found in coffee and tea, as well as some types of nuts and seeds. It is a natural antioxidant that helps to protect the body from free radicals, which are harmful molecules that can damage cells and organs over time. The exact mechanism by which caffeine works remains unclear, but it is generally thought to be a stimulant or兴奋剂作用，which may contribute to feelings of alertness and mental focus during exercise, as well as improving cognitive function
