Inclusion Body Myositis (Inflammatory Myopathy) information sheet compiled by the National Institute of Neurological Disorders and Stroke (NINDS).

Hypotonia information sheet compiled by the National Institute of Neurological Disorders and Stroke (NINDS).

Hypertonia disease information sheet compiled by the National Institute of Neurological Disorders and Stroke (NINDS).

Hypersomnia information sheet compiled by the National Institute of Neurological Disorders and Stroke (NINDS).

Hydromyelia information sheet compiled by the National Institute of Neurological Disorders and Stroke (NINDS).

Hydrocephalus information sheet compiled by the National Institute of Neurological Disorders and Stroke (NINDS).

Hydranencephaly information sheet compiled by the National Institute of Neurological Disorders and Stroke (NINDS).

Huntington’s Disease information sheet compiled by the National Institute of Neurological Disorders and Stroke (NINDS).

Holoprosencephaly information sheet compiled by NINDS.

Holmes-Adie syndrome (also called Adie’s syndrome and Adie’s tonic pupil) information compiled by the National Institute of Neurological Disorders and Stroke (NINDS).