I agree with many of the supplements offered here, particularly Lions Mane, fish oil, CoQ-10 and NAC.
Reduce inflammation with turmeric (plant or supplement form), ibuprofen, whatever you use to decrease inflammation. I like to make "golden milk"
One of the most useful supports for brain injury is craniosacral therapy (CST). I speak as a practitioner and as a recipient of CST. CST helps to ease the bones back into their proper alignment, especially useful if concussion came from a blow to the head, which can cause misalignment. It also helps to heal the brain by soothing and reducing inflammation. Find a practitioner who specializes in brain injury, but even the most rudimentary care is helpful.
Chiropractic can also be helpful by relieving pressure and misalignment of neck bones, occiput, and spine.
Best to avoid reading, electronic media, loud noises, or bright lights.
Be kind to your head and brain.
Don't force participation or work if able to avoid. Your brain needs rest, quiet, peace.
I am wishing your friends well. A lot of western medicine states that after (6 or 12 or 18) months, everything is healed but that isn't necessarily true. Brains take a lot of time and love and peace to heal. They keep on healing and generating new tissue. We just need to give them the support and time required.
Best wishes!
