Yes, thinking about heart palpitations can cause them. This phenomenon is known as psychogenic, or "mind-body," palpitations. It occurs when the mind perceives a threat, such as fear or anxiety, and causes the body to respond with rapid heartbeat, chest tightness, and a sensation of fluttering in the chest.
Psychogenic palpitations can be caused by a variety of factors, including stress, fear, and anxiety. In some cases, simply thinking about a situation that could cause palpitations can trigger them. This is known as anticipatory anxiety, meaning that the anticipation of negative or stressful events can be enough to cause the body to enter a state of heightened alertness and arousal.
The good news is that psychogenic palpitations are usually harmless and can be managed with lifestyle changes and relaxation techniques. Regular exercise, stress management, and deep breathing can help reduce the anxiety that leads to palpitations. Additionally, avoiding caffeine and alcohol, as well as getting enough sleep, can help reduce the frequency of palpitations. Finally, talking to a professional counselor or therapist can help identify and manage the underlying causes of psychogenic palpitations.