Men in their early 60s face a greater risk of dying from heart attacks and strokes on hot, muggy nights. Researchers found that even a 2-degree rise in nighttime temperatures during the hottest summer months was linked to a nearly 5 percent spike in deaths from those conditions. Hot weather is a known risk factor for heart health, especially for those with pre-existing cardiovascular conditions. Keep the thermostat in your bedroom around 65 degrees F. If you notice signs of heat stroke – a temperature about 103 degrees, rapid pulse, dizziness, or red, hot skin – call 9-1-1 immediately. Learn more about the risk of heat stroke for older men.