Joe Wicks has revealed he's bringing back his online PE classes to ensure England stays fit during its third national lockdown.
UK Prime Minister Boris Johnson has plunged the nation into tough restrictions to stem the spread of the coronavirus.
Schools will be closed until mid-February and everyone has been told to stay home for as long as possible.
Because everyone will be bunkering down in their properties for the next few weeks, Joe Wicks wants them to keep moving to avoid becoming unfit and unhealthy.
Taking to Instagram, The Body Coach said: "I've got some great news, I've decided I need to come back and be there for children during this time, through this lockdown when schools are closed to keep their exercise up, to keep their activities there, their energy, their mood, their mental health.
"I'm going to be doing PE with Joe live, three days a week Monday, Wednesday, Friday starting next week on the 11th.
"Children at home, they're not being as active. Their mental health is going to suffer and we need to be getting our kids moving."
The classes will debut on his YouTube channel and consist of 20-minute basic exercises that will get your heart rate up and blood flowing.
Prime Minister Boris Johnson confirmed that the country would be placed under stricter measures due to a continued rise in the number of coronavirus cases over recent weeks - with more than 80,000 people in the UK testing positive for the deadly disease on 29 December, a new record.
He once again ordered the country to stay at home, and not to leave other than for a number of permitted reasons, such as for work, shopping for essential items, and medical issues.
Under the rules, people can fulfill volunteering obligations; exercise once a day alone, with people from their household, or one person from another household; visit other people in their support bubble; and carry out compassionate visits, such as to those who are giving birth or in a hospice.
Attending places of worship is also allowed. All pubs and restaurants must also close, except to provide food and non-alcoholic drinks for takeaway.
Mr Johnson also announced that schools were to close until after the February half term, except for vulnerable pupils or the children of key workers.
He said that while the government had been working to keep schools open, they were 'vectors for transmission' and were causing the virus to spread between households.
As a result of the closure, Mr Johnson confirmed it would not be 'fair' for all exams to go ahead this summer.
Those who are found to be outside without a 'reasonable excuse' will be given a Fixed Penalty Notice of £200 for the first offence, doubling for further offences up to a maximum of £6,400.
These new rules are to be followed immediately, and will come into law on Wednesday morning (6 January).
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