Avoid heat injury: While Summer is the time for increased fun in the sun, it is also the time of increased heat injury such as heat cramps, heat exhaustion, and heatstroke. These conditions are caused by prolonged exposure to high temperatures, especially when combined with high humidity, and strenuous physical activity.
Heat cramps are painful, involuntary muscle spasms that can affect any muscles engaged in strenuous activity. Heat exhaustion often displays symptoms like muscle cramps, nausea, headache, fatigue, cool/moist skin with goosebumps when in the heat, heavy sweating, faintness/dizziness, weak/rapid pulse, and low blood pressure upon standing. If left untreated, heat exhaustion can lead to heatstroke. Heatstroke can begin with the symptoms described for heat exhaustion, but also include high body temperature (104 F/ 40 C), hot/dry skin, vomiting, flushed skin, and rapid breathing. If left untreated, heatstroke can be deadly.
Fortunately, heat injury is preventable. First, remember to stay hydrated as mentioned before. Take breaks often when working or during strenuous physical activity. Limit your exposure to direct sun and heat in general. Wear loose fitting, lightweight clothing, but avoid clothing that doesn't allow your sweat to easily evaporate. To protect against sunburn, wear wide brimmed hats, long sleeves, and use broad-spectrum sunscreen with an SPF of at least 15 (follow directions). And your thermonuclear protection would not be complete without your sunglasses!