Recent research shows -- believe it or not -- that sweat and airway secretion are linked. For people who have exercise-induced asthma, dryness in their airways can trigger asthma symptoms. Increased airway secretions can minimize or prevent symptoms during exercise.

Study participants were given medications to induce asthma symptoms and/or sweating. Obviously, the average Joe can't pop a pill to increase sweat production. And honestly, who would want to? So while researchers still work out the practical applications of this knowledge, follow these tips from the American Academy of Allergy, Asthma & Immunology:

• Try swimming -- the warm, humid atmosphere reduces the risk of symptoms.
• If you want to play team sports, opt for those -- like baseball -- that have short bursts of intense activity rather than continuous movement.
• In cold weather, wear a scarf or mask over your mouth and nose to warm the inhaled air.