Natural Cures for Angina (Chest Pain)

My husband used to drink ACV mixed with water to relieve chest pains. It works for a while but it does not work that fast anymore. I made him drink black tea in addition to ACV because I've read before that black tea helped reduce heart attack and stroke. I thought that it can also help with chest pains...and it did! My husband now takes ACV and water mixture followed by a cup of hot black tea.