According to ayurveda, monsoon is the time when the digestive system weakens and affects two energy systems: vata (air) and pitta (fire). This basically leads to the following:
* Low digestive strength
* Low immunity
* Low vitality
A vata imbalance can lead to indigestion, body pain, headaches and gaseous distention. A pitta imbalance can lead to fungal infections, urinary tract infections, skin infections and throat infections.
But there's no reason to panic. Just protect yourself well enjoy the rains.