They play an important role in metabolic health, weight control, bone strength and endurance against stress and disease. Muscle mass helps control blood sugar, improves sleep quality, boosts mental health, and keeps endurance and stamina at a good level. The human body has more than 600 muscles, which make up about 40% of the body weight. You can build relatively good muscles with regular exercise and a healthy diet. All muscles are made up of a kind of elastic tissue made up of thousands, or tens of thousands of tiny muscle fibers. Each muscle fiber is controlled by a nerve that contracts it. Muscle anatomy is complex, but its importance cannot be underestimated. Frequent spasms and muscle cramps can be a sign of magnesium deficiency in the human body. Magnesium is an important nutrient for maintaining muscle health because it stimulates the use and absorption of calcium and increases the absorption of potassium, both of which are essential for building strong muscle. In addition, magnesium helps muscles absorb more sugar from the blood and excrete lactic acid. Lactic acid can be produced in the muscles during exercise and can cause pain. If you experience frequent muscle cramps, it is best to check your body's magnesium levels. If you are deficient in magnesium, all you need to do is increase your intake of this important mineral through a healthy diet or consult your doctor for a supplement. Magnesium-rich foods include whole grains, nuts, beans, legumes, leafy green vegetables, and fruits such as avocados and bananas. Potassium helps maintain fluid and electrolyte balance in the human body, which is important for proper muscle and nerve function. You can boost your body's potassium sources by eating foods rich in this mineral such as bananas, Brussels sprouts, spinach, and white beans. You can also take the supplement after consulting your doctor. Harmful toxins in cigarettes are harmful to the whole human body. In fact, nicotine can affect various muscles and cause acute or chronic muscle disorders. In addition, smoking leads to poor blood circulation throughout the body, which means that muscles are deprived of enough nutrients and oxygen to function properly.