Caffeine also has a dramatic effects on the adrenal glands. The adrenal glands regulate hormone levels within the body. Most notably of theses hormones are the “fight or flight” hormones adrenaline and noradrenaline. Caffeine causes a release of these hormones which will give a short term energy burst. The problem is when there is chronic stimulation of the adrenal glands. This will lead to adrenal burnout which can negatively effect energy levels, metabolism, and digestion.
At its core, burning fat comes down to the process of lipolysis—the breaking down of fat lipids, explains Seedman. This happens in the mitochondria of the muscles, or the powerhouses of the cells, responsible for generating the energy our cells need to do their jobs. Exercise has been shown to improve mitochondria function, which then promotes fat breakdown, Seedman adds. Plus, working out helps regulate pretty much all the hormones that optimize fat loss.