A method of treating a host of neuromuscular, neurodegenerative, developmental, autoimmune and metabolic diseases/disorders related to aging, such as traumatic injury, stroke, Huntington's disease, Epilepsy, Multiple Sclerosis (MS), Lupus, Type-1 and Type-2 diabetes, Maturity Onset Diabetes of the Young (MODY), myasthenia gravis (MG), rheumatoid arthritis (RA), Graves' disease, Guillain-Barré syndrome (GBS), metabolic syndrome, Muscular Dystrophy or Duchenne Muscular Dystrophy (DMD), severe burns, aging, Amyotrophic Lateral Sclerosis (ALS), Friedreich's Ataxia, Batten Disease, Alzheimer's disease, optic neuritis, Leber's hereditary optic neuropathy (LHON), autism, Rett syndrome, Batten Disease, Angelman's Syndrome, Leigh disease, Fragile-X Syndrome, depression, Parkinson's disease, mitochondrial diseases, developmental disorders, metabolic disease disorders and/or autoimmune disorders by inducing endogenous BDNF expression with DNP treatment to protect from neuromuscular dysfunction/disorders and/or neurodegeneration and/or muscle wasting. DNP was administered to mice daily over a range of doses, and subsequently BDNF expression in the brain showed a dose dependent and non-linear increase in expression.