Do you feel ashamed to shake your hands with anyone? Reading this sentence one might feel perplexed because no one actually should feel ashamed giving a handshake. But amongst you there are many who feel tensed and stressed when thinking of addressing a person. Palmar Hyperhidrosis or excessive sweating of palms is a condition which occurs due to hyperactivity of the sweat glands. There are many hypotheses but the exact causative factor is not yet determined.