Ignoring these symptoms during the scorching heat could prove costly; they may be signs of heat exhaustion..

As the mercury inches closer to the 40°C mark, the scorching heat has become not merely a source of discomfort but a serious challenge to public health. In several regions, including Delhi-NCR, the situation has already begun to turn critical. According to the Meteorological Department, temperatures remain 3 to 5 degrees Celsius above normal, and the mercury could cross the 40-degree mark by April 17.

In light of this, it is imperative to exercise heightened caution regarding one's health. Let us learn from Dr. Mohit Sharma (Senior Consultant, Internal Medicine, Amrita Hospital, Faridabad) how heatwaves impact health and which individuals need to be particularly vigilant.

**Internal Bodily Balance and Dehydration**
Excessive heat disrupts the body's internal equilibrium. Through perspiration, the body rapidly loses water and essential salts. If these losses are not replenished immediately, they begin to adversely affect various bodily organs.

**Signs of Dehydration**

The initial and most common manifestation of heat-related distress is dehydration. This can lead to symptoms such as fatigue, dizziness, or headaches. If dismissed as a minor issue and ignored, it can progress to cause weakness, low blood pressure, and even fainting.

**Impact on the Digestive System and Risk of Infections**
The scorching heat not only intensifies thirst but also impairs digestive function. Many individuals experience a loss of appetite, acidity, or a sensation of heaviness after meals. Furthermore, food spoils more rapidly during the summer months, leading to an increased incidence of gastrointestinal issues such as stomach infections, diarrhea, and vomiting.

**The Risk of Heat Exhaustion and Heatstroke**

The longer one remains exposed to the heat, the greater the associated risks become. In cases of heat exhaustion, individuals may experience nausea and muscle cramps. Conversely, heatstroke is a medical emergency in which the body's temperature rises to dangerous levels, leading to confusion, a rapid heartbeat, and potentially loss of consciousness.

Who is Most at Risk?

The impact of this heat is not uniform across everyone. Certain individuals need to exercise extra caution during this period:

The Elderly and Children—Their body temperature regulation systems do not function as efficiently.
Patients with Certain Medical Conditions—The condition of individuals suffering from heart disease, diabetes, or kidney problems may worsen during hot weather.

Laborers and Outdoor Workers—Those who spend hours exposed to direct sunlight face the highest risk of heatstroke.

Pregnant Women—They require increased fluid and energy intake during this time.

Prevention is the Best Solution
According to Dr. Sharma, preventive measures are quite simple. Staying hydrated, avoiding direct sunlight during the afternoon hours, and consuming fresh, light meals can help keep you safe. Do not make the mistake of dismissing a heatwave as merely a normal weather phenomenon; it can strike your body insidiously.

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