By Ariane Sohrabi-Shiraz For many, January 1 means the start of Dry January – a month of giving up alcohol. Coming right off the back of December, a month of indulgence, is January – when many people decide to give up alcohol for their health, financial or other reasons. Booze is deeply engrained in our culture, so giving up can be a big challenge. But quitting the booze has many health benefits, from improving sleep to mental health – and the benefits start almost immediately after stopping drinking. An hour after stopping drinking, your blood pressure will start to improve, which will benefi…