To reduce our risk of ill health from inactivity, we are advised to exercise regularly, at least 150 minutes a week, and reduce sitting time. Sitting for long periods is thought to slow the metabolism, which affects the body's ability to regulate blood sugar, blood pressure and break down body fat. The UK Chief Medical Officers' Physical Activity Guidelines report recommends breaking up long periods of sitting time with at least light activity. It is thought excessive sitting slows the metabolism – which affects our ability to regulate blood sugar and blood pressure, and metabolise fat – and may cause weaker muscles and bones. Adults aged 19 to 64 are advised to try to sit down less throughout the day, including at work, when travelling and at home. stand on the train or bus, take the stairs and walk up escalators, set a reminder to get up every 30 minutes, place a laptop on a box or similar to work standing. standing or walking around while on the phone, taking a walk break every time you take a coffee or tea break, can help reduce sitting time.