Sometimes no medical cause or explanation can be identified and this condition is known as idiopathic hyperhidrosis, which can affect different parts of the body (such as the palms, armpits, etc.) Causes of Waking Up Sweating. There are many possible causes for you to wake up sweating.
The first myth, that darker roasts have more caffeine, largely comes from people mistakenly associating caffeine levels with flavor. The bold flavors of dark roasts are thought to be stronger, and therefore, contain more caffeine. Caffeine isnât the chemical that produces the bolder flavors, though.
The higher caffeine content actually makes Robusta less pleasant to drink. So our takeaway is: pick the roast based on your taste preference -- light roast has a brighter flavor and is more acidic, dark roast is smoother -- and don't try to judge its caffeine content from its roast.