5. Caffeine
It’s true that caffeine raises blood pressure, so if you have a pre-existing condition, it’s not a good idea in excess.
However, these effects have been shown only to make an impact in the short short-term, and the NHS says if we stick to four cups(!) of tea and coffee, we should be fine.
In fact, people who drink caffeinated coffee or tea tend to have a lower risk of heart disease, including high blood pressure, than those who don’t!
6. Alcohol
Regularly drinking to excess can affect the muscles in blood vessels, causing them to narrow.
The NHS tells us that both men and women should stick to no more than 14 units a week – here’s how to find out how many units in your favourite drink.
Alcohol is also high in calories, which can make you gain weight and further increase blood pressure.