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Heart Health Archive

Articles

How can I build up my blood hemoglobin level?

Regular blood donations can slowly drain iron stores, lowering hemoglobin levels. Iron supplements may help rebuild them.

Which number in a blood pressure reading is more important?

Both systolic and diastolic readings matter. But large studies have shifted focus toward the top number. See what each reveals about heart risk.

What could cause sudden leg weakness?

Legs that repeatedly give out after activity, then recover with rest, may point to more than low minerals and warrant prompt medical evaluation.

What is ventricular bigeminy?

Bigeminy is a usually harmless heart rhythm problem caused by premature heartbeats that may cause palpitations. Possible triggers include caffeine, stress, and lack of sleep. People with additional symptoms may need further testing.

FDA approves nasal spray to treat rapid heart rhythm

In late 2025, the FDA approved a nasal spray to treat a sporadic, rapid heart rhythm called paroxysmal supraventricular tachycardia (PSVT). The self-administered spray, called etripamil (Cardamyst), may help people avoid emergency room treatment for PSVT.

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