Why does my heart beat faster in hot weather?

When the weather is hot, the human body's metabolic rate will speed up, the evaporation of water in the human body will increase, and the heartbeat will speed up accordingly. These are all normal phenomena. Drink more water to keep your body hydrated, and avoid staying in a hot environment for a long time, otherwise you may experience problems such as heat stroke. If you feel nausea, dizziness, or night sweats, go to a cool place immediately, wipe your body with cold water, and seek medical attention immediately. This article analyzes the consequences of insufficient water intake when the heart rate accelerates.

Many people have this feeling: when summer comes, they feel their heartbeat speeds up when the weather is hot and humid, which is very uncomfortable, but they don’t know how to solve it. Researchers at Harvard University pointed out that insufficient water intake may be one of the important reasons, so just drink more water.

Erica Kenny, a postdoctoral researcher at the Harvard School of Public Health, pointed out that about half of children do not drink enough water, and even mild dehydration can cause rapid heartbeat, dizziness and headache.

If you don't drink enough water and stay in a hot place, you will sweat a lot and easily be knocked down by the heat wave, suffering from heat cramps, heat fainting, heat exhaustion and the most serious problem, heat stroke.

Heat exhaustion is mainly caused by being in a warm and humid environment for a long time, which causes excessive loss of water and electrolytes in the body due to excessive sweating and leads to mild shock.

If patients with heat exhaustion cannot be relieved and the brain's heat dissipation center stops functioning, heat stroke will follow. When the human body absorbs or generates too much heat but cannot effectively eliminate the heat, the brain's heat dissipation center may become ineffective, causing the body temperature to exceed 40 degrees Celsius and causing damage to tissue cells.

Doctors pointed out that the general public can choose to engage in activities during cooler periods. Even for mild exercise, it is best to do it in the evening, dusk or indoors when the temperature is suitable. The summer climate is generally hot and humid, so when you go out for outdoor activities, you may want to carry a bottle of water to replenish your water at any time and wear loose, thin clothes with good ventilation.

Doctors recommend that if you feel any discomfort, such as extreme thirst, fatigue, nausea and vomiting, headache and dizziness, weakness in the limbs and cold skin, pale face, weak pulse or heavy sweating, fatigue, nausea, dizziness and other symptoms, it is recommended to go to a cooler place to rest as soon as possible, loosen your clothes, wipe your body with water, and seek medical attention as soon as possible.