Jim Mochanz, who worked for 10 years installing mobile phone masts, told BBC Radio 4's Today programme he now suffers from memory loss and mood swings.

BBC: Volunteers to test phone safety

The filing cites recent scientific studies that have found a connection between concussions and chronic traumatic encephalopathy, a neurodegenerative disease that results in Alzheimer's-like symptoms, including memory loss and mood swings.

CNN: More players file concussion lawsuits against the NFL

They also scavenge (detoxify) peoxynitrites and reverse part of their damage including partially restoring function to receptors involved in short-term memory, mood, sleep, smell, social recognition, alertness, and brain growth, increasing the transport of glucose reducing delusions and wandering, improving neurotransmissions by decreasing the hyperphosphorylation and tau proteins, and inhibiting the influx of calcium which kills neurons.

FORBES: What Can You Do When Your Aging Parent Has Dementia?

After ten weeks of Tai Chi classes, the study group showed significant improvements in tests of their memory, language, attention, stress, mood and fatigue.

FORBES: Are Yoga and Tai Chi Good Candidates For Physical Therapy?

Gum has been studied for its beneficial effects on memory, alertness, anxiety reduction, appetite suppression, mood and learning.

FORBES: Chew Yourself a Better Brain