Can cell phones cause heart attacks?

Answer 1

There is no evidence that cellphones can directly contribute to heart attacks, (unless there is extremely bad news on the other end of the line). To provoke a heart attack, the phone would need to exert enough energy to dislodge a coronary artery plaque, or create a clot to block an artery. The amount of radiant energy produced during a cell phone call is not enough to cross the chest wall, much less have an impact on the cardiac tissues. Persons with pacemakers however, are cautioned to avoid placing any electronic device that might produce a magnetic field, near their pacemaker. Magnets are used to program and control both pacemakers and Automatic Internal Cardiac Defibrillators (AICDs), and there have been reported interference in function of these devices from the magnets from ear-bud speakers and cell phones, when placed in direct proximity of the device.

Answer 2

Unless you have an implanted defibrillator or pacemaker - themsleves electronic devices - the wavelengths caused by a cell phone cannot cause heart problems should you wear your cell phone in your shirt pocket near your heart, for example (this is based on a 2009 study).