Dear Magannorville Hello I am Dr Ravinder Sharma. On the basis of information provided it appears that you have deafness and ADHD and you had cochlear implant done for deafness. Deafness can be congenital and can be attributed to a variety of causes ranging from antenatal period( infection during first trimester, exposure to ototoxic drug first trimester of pregnancy) at birth (difficult delivery, delayed cry, prematurity) or in postnatal period (Jaundice, Infection, ICU stay ). After complete work up still there is a group where we can’t label a cause of deafness—called a idiopathic. This has got genetic association. Quite a good number of studies show this association to specific gene sequences contributing to deafness There are several theories to explain cause of ADHD . To name a few are – genetic and hormonal imbalance—linked to dopamine. Some studies have suggested variation in DRD4 gene (associated with dopamine receptor in brain) in some patients of ADHD At times the behavior and responses of a child with deafness may be misinterpreted as ADHD. Best approach for such cases require Otolaryngology consultation, Pediatrician consultation and a Psychiatry consultation to come down to a clear picture. Smoking weed improves alertness but then it has addiction potential and harmful. There are other better ways of improving alertness. As of now it is appropriate to say that ADHD and congenital deafness are two differnt diseases. Some of the cases of deafness may have ADHD too. A team approch for managing such cases is the key. I hope this answers your concerns. Feel free to contact me if you want further information about it With regards Ravinder Sharma Professor ENT & Head and Neck Surgery