Each bean contains 0.8 - 2.5 % caffeine. For your information in an average cup of coffee you have 75mg caffeine. One cup of coffee contains around 25 coffee beans, and you are not getting the full coffee bean in coffee, so the caffeine can add up if you eat a lot.
The reason why temperature effects muscles is because of the numerous atoms in the body that react to temperature. When the air, or body temperature is colder the atoms tend to stay closer together, causing less movement...when it is hot, the atoms (molecules) move around more, causing more range of motion. It also allows blood to flow more easily when it is warm than cold.
If body temperature starts to rise, the blood vessels in the skin, which are a part of the cardiovascular. system, dilate so that more blood is brought to the surface of the skin for cooling, and the sweat glands become active.Sweat absorbs body heat, and this heat is carried away as sweat evaporates.hen muscles contract and ATP is broken down, heat is released. The skin, under the direction of the brain, plays an. active role in whether this heat is conserved or released to the environment in order to maintain a body temperature of 36.2-37.7C (97-100F).