Heat Wave Poses Extra Risk to People With Heart Conditions

The Heart and Stroke Foundation stated that a current heat wave in Central Canada can be especially dangerous for people with cardiovascular conditions. The foundation said extreme heat forces the heart to work harder to move blood to the skin's surface while the body sweats to cool itself. It added that dehydration becomes a significant risk during such periods.

People taking heart or high-blood-pressure medications, including diuretics, ACE inhibitors, and calcium channel blockers, need to be extra vigilant about fluid intake, the foundation said. m. m. Residents without air conditioning were encouraged to use libraries, malls, or community cooling centers.

The foundation described heat stroke as a medical emergency in which the body loses its ability to regulate temperature. Symptoms can include hot, dry skin, confusion, dizziness, a rapid heart rate, vomiting, diarrhea, and headache. If someone shows signs of heat stroke, call 911, move the person to a cooler area, and apply cool water, fanning, or ice packs while waiting for help, the foundation advised.

The organization noted that heat stroke is distinct from a stroke, which occurs when blood flow to part of the brain is interrupted.