Pollution levels often rise when the air is warm. Layers of pollution hang heavy in the air over towns and cities in the summer months and bring with it health risks, especially of the respiratory kind. If possible, take your workouts out and away from the city or, at the very least, from highly trafficked streets. Check your local weather report for air quality forecasts (e.g. Air Quality Index). Take your workout indoors when ozone or carbon-monoxide levels exceed 100.
CHECK YOUR MEDS & SUPPLEMETS
Some mediations, both prescription and over-the-counter, and even supplements, can intensify the effects of the heat and the sun. For example, diuretics can lead to dehydration, and may be found in some sports or fat-burning supplements. Other medications that can leave you more vulnerable to the heat and sun include antihistamines, decongestants, antihypertensives, and antidepressants (including the herb Saint John’s Wort). Check the drug-package inserts of any medications or supplements you may be taking and speak to your physician or pharmacist.