Today we see Sarah, Darren, Nicholas A, Nicholas M, Neil, Steven and Graham - our amazing seven members of #TeamTSA - take on the Virgin Money London Marathon 2017.
There is still time to read their full stories and to support them with their fantastic efforts as fully as you can, whether that means sponsoring them, telling friends and family about them, or sharing their stories on your social media accounts. And don't forget to the follow the race today on BBC1, BBC Radio 5 Live or BBC Sport.
Sarah Bell is running for #TeamTSA because her daughter Emily, 4, has TSC. Sarah has set herself a target of raising £2,000.
Nicholas Annear Nicholas says he is inspired by his patients at St George's Hospital, London, where he is a Consultant Nephrologist. He is aiming to raise £2,500 for us.
Darren Pascoe Darren, from Colchester, has been inspired to run for #TeamTSA by his niece Cece who has TSC. Darren is hoping to raise £1,600 for us.
If you would like to support them please sponsor them, and, if you'd like, you can join us today at our Virgin Money London Marathon cheering point on the grass outside Big Ben. Please
look out for our TSA purple and green flags. Have a brilliant day everyone!