Push-ups on the floor, on the wall, on the back of a chair, hand-stands, sit ups - they are all fair game as part of the daily Push-Up Challenge from May 11 to 31.

The three-week event helps those taking part learn about mental health and raises awareness of the 3046 people in Australia whose lives were lost to suicide in 2018.

The major aim of headspace Horsham this year is to boost awareness, with the Wimmera having already dug deep for bushfires and the COVID-19 shutdown likely to impact fundraising.

Horsham Victorian Certificate of Education student Cooper Walter said he couldn't wait for it to start.

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"It's good to come in prepared, good to warm-up because it's more than 3000 push-ups in 21 days," he said.

"I'm doing it because it's a challenge, because it's hard."

Cooper said it was a lot of fun last year and this time around, being in isolation during the pandemic, it was a great thing to do.

He encouraged people to tap into #pushforbetter or #pushupheadspacehorsham and see what others were getting up to and to join in themselves.

Holy Trinity secondary health and physical education teacher Matthew McLoughlin said that last year 15-20 students did the challenge, so to have the numbers double was huge.

"I'm still getting emails from people wanting to join, wanting to support this," he said. "Hopefully we'll have more on board by Monday, when we'll move away from recruiting to fundraising."

This year participants have the option to choose which headspace will get the money, and all funds raised by the school will go to the Horsham branch.

"We are currently at $525, but anything is a good target," Mr McLoughlin said. "It would be amazing to say raise $1000, but anything is great."

Mr McLoughlin has met the cost of Push For Better t-shirts and has asked students and staff to donate the equivalent cost of the shirt to headspace.

He said as a health teacher "we cover mental health, it's so important to promote good mental health awareness".

Ultimately, the aim was to get that figure of 3046 lost to suicide down to nil. "We are doing this so we never have to do it again, so that figure is zero, " he said.

The school would be doing the challenge remotely, with the possibility of a few hook-ups via social media.

Mr McLoughlin said staff who were working at the school might do a physical distance push-up challenge during a break.

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Each day has a different number of push-ups to reflect a vital mental health statistic - such as 45 push-ups to recognise the percentage of Australians who will experience a mental health condition in their lifetime.

He said anybody who couldn't complete the entire challenge themselves could still take part by joining a team, which they can be linked up to after signing up.

Push-ups can be done at home and tracked via the online tracker, which allows you to view your individual and team progress and privately message teammates.

The event also features Push-Up of the Day on socials and a daily Spotify playlist.

headspace Horsham community development co-ordinator Louise Barnett said the challenge fitted in with things needed for better mental health including staying active, making connections, eating well and learning new skills.

"Looking after your mental health is so important and this is a great opportunity to come together and create a push up community in the Wimmera," she said.

"We can challenge our physical health and get on Zoom to do some push-ups and have a giggle together. All of which are great ways to boost your mental health."

She said the team at headspace in Horsham would be taking part.

"The push-up challenge is free to join and you don't have to raise funds to be involved," she said.

"We understand that times are tough for many people and some have already been so generous with the bushfire appeal.

"We just hope this unites the Wimmera to jump on board and raise awareness."