Sober October is an annual campaign that encourages individuals to abstain from alcohol for the entire month of October. It aims to raise awareness about the effects of alcohol on health and promote a healthier lifestyle. Many participants use this time to reflect on their drinking habits and consider the benefits of reducing alcohol consumption. The initiative was originally started by the charity Macmillan Cancer Support in the UK to raise funds for cancer care. Participants often share their experiences on social media, fostering a sense of community and support among those taking part in the challenge.