Extreme heat can pose serious health risks. A study from 2022 revealed that high temperatures can significantly raise the chances of health problems and even increase the risk of death.

When the body's natural ability to regulate temperature is compromised, various health issues can emerge.

Increased Health Risks During Hot Weather

Dehydration

Dehydration is one of the primary dangers during hot weather. Higher temperatures cause the body to lose more fluids through sweating. If these fluids are not replenished by adequate drinking, dehydration can set in.

Common signs of dehydration include excessive thirst, dry mouth, dizziness or weakness, and reduced urination. In more severe cases, dehydration can lead to complications like low blood pressure, kidney failure, and even shock.

Migraine Attack

Hot weather-related dehydration can also trigger headaches and migraines. The loss of fluids can disturb the balance of key electrolytes, such as sodium and potassium, which are essential for nerve and muscle function. This imbalance may provoke headaches and migraines.

Heart Attack

Recent studies have highlighted a significant connection between extreme heat and the risk of cardiovascular issues, including heart attacks. In hot conditions, the heart must work harder to help cool the body.

This leads to increased blood flow to the skin and a faster heart rate to aid in body temperature regulation. The added strain can raise the likelihood of a heart attack, especially in individuals with pre-existing heart conditions.

Heat Stroke

Heat stroke occurs when the body overheats, typically from prolonged exposure to heat or intense physical activity in high temperatures. It can happen when body temperature reaches 40°C or higher.

Heat stroke is a medical emergency that can cause organ damage or death if not treated quickly. Some common symptoms of heat stroke include:

• Confusion or behavioral changes
• Speech difficulties
• Seizures
• Hot, dry skin
• Elevated body temperature

Kidney Health Deterioration

Extreme heat can negatively affect kidney health. The kidneys rely on adequate fluids to function properly, but in hot conditions, the body loses fluids and electrolytes through sweating. Without proper hydration, dehydration can put additional strain on the kidneys.

Severe dehydration may reduce blood flow to the kidneys, which could lead to acute kidney failure. Additionally, prolonged dehydration increases the concentration of minerals in urine, heightening the risk of kidney stones.

High and Low Blood Pressure

Hot weather can influence blood pressure, either raising or lowering it depending on the body's response. Dehydration reduces fluid levels in the body, which can decrease blood volume and cause blood pressure to drop.

Conversely, in hot conditions, the body works harder to regulate temperature. The heart pumps blood faster to aid cooling, which can elevate blood pressure.

In extreme heat, stress on the cardiovascular system can cause blood vessels to constrict, raising blood pressure. This increased workload on the heart can make it more difficult to circulate blood effectively.

During periods of extreme heat, it is important to stay hydrated, avoid prolonged exposure to high temperatures, and recognize early signs of potential health problems.

If you have any concerns about your health, do not hesitate to consult a doctor. You can also use Ai Care's health consultation service, available for download via the App Store or Play Store.

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