A TENS unit (Transcutaneous Electrical Nerve Stimulation) does not cause heart attacks in healthy individuals. There is no evidence that the use of TENS can directly lead to a heart attack. However, precautions are strongly advised for people with heart conditions, especially those with cardiac pacemakers or implantable cardioverter-defibrillators (ICDs), as the electrical stimulation can interfere with these devices and may affect their function. This interference does not cause a heart attack but could lead to improper device responses. Additionally, it is generally recommended that individuals with heart disease, heart failure, or arrhythmias avoid using TENS without medical advice. Proper consultation with a healthcare provider is essential before using TENS if there is any concern about heart conditions.
