stop the exercise
While you are working out, Muscle Contractions use up energy sources like Glucose, Glycogen, and ATP. While this is happening, a waste product called Lactic Acid is produced. The gradual increase of lactic acid is what causes the burn in muscles while working out.
Muscles produce heat when worked due to friction, the heat is carried away by the blood and brought to the skin for cooling. Lift something heavy then feel your muscle, the more you lift, the hotter the muscle will feel.
muscles of corse you cant even feel it happening inside you its faster than blinking
unless you are naturally skinny you will gain weight. Also , if you all of a sudden start exercising after hardly ever exerciseing you will feel sore in your muscles.
The pain you feel is the buildup of lactic acid and the tiny tear/rip/stretch damage that exercising causes in your muscles. Later, the pain will encourage you to rub and move the muscle...which is exactly what will help relieve the pain. The ache is a good thing.
You may, particularly if it's large or has been in for a while. If you feel discomfort when sque3ezing your muscles, the tampon probably isn't in far enough.
Most of your muscles are relaxed while sleeping.
Fin-tastic!
You feel hot because your body is using the energy from your food and turning that into motion. But your muscles can't do that 100% efficiently, so quite a lot of it gets turned into heat.
when you stop exercising you start to get muscle break down, this is called atrophy. This is why if you do not work out for a long time then start again you will find it harder than you thought.
As you read, you should be asking yourself questions about the plot:What is happening?Where and when is it happening?Why is it happening?Who is it happening to?