About The Longest Day

The Longest Day® is the day with the most light — the summer solstice. The Longest Day participants fight the darkness of Alzheimer's and all other dementia through a fundraising activity of their choice on a day that works for them. With sports tournaments, card games, parties, baking and more, participants raise funds to advance the care, support and research efforts of the Alzheimer's Association®.

For the first time, we have treatments that can change the course of Alzheimer's. While this is a tremendous step forward, our work is far from done. We won’t rest until everyone living with the disease — at any stage — can get the treatment, care and support they need and deserve.

Watch and Be Inspired

How to Participate

It's easy — choose an activity you like to do and turn it into a fundraiser to fight Alzheimer's! Get started in three easy steps:

1Register

Sign up and select the fundraising activity you'd like to do.

2Fundraise

Set up your fundraising page and add details about your activity.

3Invite Others

Ask others to fundraise with you or simply donate to help you meet your goal.