After decades of lithium-ion batteries dominating the market, a new option has emerged: batteries made with sodium ions. Scientists have been researching alternatives to lithium for years. Much of the ...

Sodium channel blockers are medications that help reduce abnormal electrical activity in the heart. They can also lower the risk of severe complications such as stroke or sudden cardiac death. Sodium ...

DEAR DR. ROACH: My mother’s blood test has a sodium level of 130 mEq/L. She is not on diuretics, and she does not have heart or kidney problems. She is on thyroid medication and omeprazole. Do I need ...