Stephen Hawking started walking again in 1974, when he received a modified wheelchair that allowed him to move around independently.
Stephen Hawking's walking ability gradually deteriorated due to his condition, amyotrophic lateral sclerosis (ALS), and by the late 1960s he was using a cane to walk. In the 1970s, he started using a wheelchair and by the 1980s, he could no longer walk and relied on a motorized wheelchair.
Stephen Hawking's ALS diagnosis in 1963 did not affect his ability to walk immediately. However, as the disease progressed, he eventually lost the ability to walk and relied on a wheelchair.
Stephen Hawking's condition did not affect his scientific work. Despite losing the ability to walk and speak, he continued to make groundbreaking contributions to the fields of cosmology and theoretical physics.
Stephen Hawking's deteriorating walking ability had a significant impact on his personal life. He had to rely on a team of caregivers to assist him with daily tasks and he often faced challenges with accessibility in public places.