My son is now 5 and has been on chelation therapy for about 10 months. When we first began, the first 6 weeks were the hardest. Those metals really got stirred up. After that the improvements were great. He has now learned to ride a bike, follows instructions, his processing delay of 15 minutes is now gone, he finally met his IEP goals, which he was unable to meet for more than 2 years and sleeps 12-14 hours every night.