And now he's set for a really tough challenge, taking part in the Gems Junior Triathlon taking place on Friday at GEMS World Academy (GWA), Al Barsha, Dubai.
Jack, who lives with his family in Dubai, is a keen sportsman, but this will be his first attempt at a triathlon with a 200m swim, 4km cycle ride and 2km run.
Jack's dad, Chris is a fantastic support to our Happy House family, and who visited last year with his wife and sons, Jack and Leon, said: Jack is working hard to do his best for the kids and in between training and early nights has been promoting the cause to his teachers and his friends as to raise as much awareness as possible.
" Jack does already have a busy fitness schedule due to his football training which is four times weekly plus swimming three times weekly but as you can see from the picture has had to fine tune this in readiness by using the treadmill and exercise bike for Friday so to give his best shot. With support, as you can see, from his brother Leon!
"Of course we will update you on his attempt as this is his first time at such a event but for sure he will be giving 110 % of his efforts!
Jack, who is raising sponsorship via a page on JustGiving, says: "The Happy House really is as it says Happy !
" All the kids are great and always have a smile. Please help me to help the kids as they really do deserve it.
"I will be doing my very best for them on the January 31 and with everybody's help raise as much as I can."
If you would like to support Jack's effort you can sponsor him online at; http://www.justgiving.com/Jack-Howard2