Is it risky to keep mobile phone in pocket near heart? many people avoid to keep it there.

Yes and No: Reseachers at harvard have opined that there is no significant risk to heart rhythm in healthy individuals , without implanted hardware. However , the electric and magnetic fields, although weak (low power), disrupt resonance and interfere with dna repair. This has led to who classifying cell phone radiation as a class b carcinogen. Brain, breast, and parotid gland cancers are risks.