As a medical professional with expertise in cardiology, I can provide you with an informed perspective on the relationship between atrial fibrillation (AFIB) and weight gain. Atrial fibrillation is a common heart rhythm disorder that can lead to various symptoms and complications. While AFIB itself does not directly cause weight gain, there are several indirect ways in which it might contribute to an increase in body weight: 1. Reduced Physical Activity: AFIB can cause fatigue and shortness of breath, which may lead to a decrease in physical activity. A sedentary lifestyle can contribute to weight gain. 2. Medication Side Effects: Some medications used to treat AFIB, such as beta-blockers or calcium channel blockers, can have side effects that include weight gain. 3. Fluid Retention: AFIB can sometimes lead to fluid retention, which can cause temporary weight gain, especially if the individual is not consuming a heart-healthy diet. 4. Underlying Health Conditions: People with AFIB may have other health conditions that are associated with weight gain, such as sleep apnea or thyroid disorders. 5. Stress and Anxiety: Living with a chronic condition like AFIB can increase stress and anxiety levels, which can lead to emotional eating or overeating. It's important to note that not everyone with AFIB will experience weight gain, and the relationship between the two is complex and multifactorial. A healthcare provider can help assess the individual's situation and provide personalized advice. read more >>

When AFib causes heart failure, fluid in the lungs can cause fatigue and shortness of breath. Oxygen-rich blood is not being delivered to the body and brain, causing physical and mental fatigue and reduced stamina. Fluid also can build up in the feet, ankles, and legs, causing heart-failure related weight gain.read more >>