This gives us the energy to fight or run away in life-threatening situations. Even when there is no danger to our life, many situations trigger this response. If stressed too frequently, the body may suffer harmful effects. Breathing increases and supplies more oxygen to the muscles. The heart beats faster and raises blood pressure.
Perspiration increases to cool the body.
Muscles tense up to prepare for action. Chemicals are released to help blood clot. Sugars and fats are released in the blood stream to provide fuel. Some sources of stress are fears and worries, relationships, lifestyle changes, commuting, disease, drugs, finances, school, and work. If it goes on without relief, illness and disease may result.