If you don’t regularly take time to recharge and regenerate, you simply won’t cash in on the results you’ve already paid for. Play the hero long enough and you could even suffer overtraining syndrome (OTS), the result of excessive muscular, skeletal and joint trauma.

This could cause a rise in circulating monocytes – a type of white blood cell linked to immune function – which leads to:

• Low energy;
• Reduced protein synthesis;
• Poor sleep;
• Reduced performance;
• A drop in hormone production

Pretty much everything you need to ensure muscle growth and energy production get shut down.

You keep training because you want to achieve your goals. But by overtraining you force your body into survival and protection mode instead. To some, a week away from the gym might seem counterintuitive. Two weeks might seem like heresy. However, in reality, it could be your key to success. When you take a week or two off from the gym every 12 weeks or so, your muscles, tendons and ligaments repair themselves, and the glycogen energy stores in your muscles and liver are replenished.

Best of all, you won’t lose any of your hard-won gains: studies show it takes four to six weeks of pure inactivity – we’re talking proper bed/boxset rest here – to see severe catabolic breakdown. After one or two weeks off, you won’t suffer a significant drop in strength, power, body mass or size – or witness a noticeable gain in body fat.

And it takes even longer to see any decline in aerobic capacity, stamina or VO2 max (the maximum amount of oxygen your body can use during exercise, according to BUPA). A week without loud, crowded gyms and rushing to get to spin class will also do wonders for your mental freshness.

You’ll feel sharper, your enthusiasm to return to your workouts come January will surge, and you will have neutralised all the tiredness and irritability associated with overdoing it. So cut yourself some slack and plan in a week of (COVID-friendly) festive fun. Truth be told, you’ll do a lot worse by overtraining than you ever could by taking time off.

Expert source: Ian Aylward, lead strength and conditioning coach at Perform St George’s Park

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