The Board has granted service connection for Parkinson's disease due to presumed exposure to herbicide agents during service. The Board also found that the Veteran's dementia is secondary to his service-connected Parkinson's disease.

The Veteran is granted special monthly compensation (SMC) at the (o) rate and SMC at the (r)(2) rate, effective January 19, 2025. The decision finds that the Veteran's service-connected conditions warrant these awards due to his need for aid and attendance.

The Board has granted service connection for lumbosacral strain with degenerative disc disease, headaches, an acquired psychiatric disorder (other specified trauma and stressor related disorder and PTSD), and Parkinson's disease. The conditions are presumed to be due to exposure in service.,Service connection is established for all four claimed conditions.

The Veteran's service-connected conditions, including Parkinson's disease and related disabilities of the upper and lower extremities, have caused loss of use in both hands and need for aid and attendance due to his lower extremity disability, kidney disease, and neurogenic bladder. The Board has granted SMC based on these findings.

The Veteran's tinnitus and hearing loss claims are denied as there is no current diagnosis of these conditions.,The Veteran's high cholesterol, dementia, stroke, prostate cancer, cataracts, diabetes, hypertension, CHF, and myocardial infarction claims are denied due to lack of service connection evidence or insufficient evidence to establish a nexus between the disabilities and active duty service.,The Veteran was exposed to toxins during his military service but there is no evidence linking these exposures to any of the claimed conditions.