Meditation Yoga & pranayam... he can listen to good Art of living music for concentration & relaxation.. u can find music files on YouTube...
He should have at least 20 mins Walk in sun in morning.. 30 mins flexibility exercises vl help too...
Next Steps
u can have a good Yoga therapist for teaching ...
Health Tips
he can do candle flame focusing every evening for 10 mins.. this gives log of energies & mind focus concentration..