The University of Sussex research showed that:

• 93% of participants had a sense of achievement;
• 88% saved money;
• 82% think more deeply about their relationship with drink;
• 80% feel more in control of their drinking;
• 76% learned more about when and why they drink;
• 71% realised they don’t need a drink to enjoy themselves;
• 70% had generally improved health;
• 71% slept better;
• 67% had more energy;
• 58% lost weight;
• 57% had better concentration;
• 54% had better skin.

Dr Richard de Visser’s findings come from three self-completed online surveys: 2,821 on registering for Dry January; 1,715 in the first week of February; and 816 participants in August.

A new YouGov poll undertaken for Alcohol Change UK showed that one in ten people who drink – an estimated 4.2 million people in the UK – are already planning to do Dry January in 2019.