It often develops in silence… but certain early symptoms of Lou Gehrig’s disease, also known as amyotrophic lateral sclerosis (ALS), can appear much sooner than most people realize. Recognizing them in time can make all the difference.

ALS remains one of the most feared neurological diseases. In France, nearly 6,000 people are currently living with the condition, and about 1,500 new cases are diagnosed every year. The average age of onset is between 65 and 75, but symptoms can sometimes emerge much earlier — often dismissed as stress, fatigue, or even aging.

The First Signs, Often Overlooked

Unlike strokes or other sudden neurological conditions, ALS begins subtly. Early symptoms may include:

• Muscle weakness in one arm or leg, sometimes making it difficult to lift objects or climb stairs.
• Painful cramps, particularly in the hands and feet.
• Small, involuntary muscle twitches visible under the skin, often described as “fasciculations.”
• Loss of strength or clumsiness, such as frequently dropping objects or stumbling without reason.
• Difficulty speaking or swallowing, often linked to the “bulbar” form of the disease.

Because these signs can be mistaken for everyday fatigue, many patients go undiagnosed until the disease has advanced.

Sleep Disorders as a Warning Signal

Recent research from Inserm and the University of Strasbourg suggests sleep problems may appear well before the more obvious motor symptoms. Their 2024 study found that some patients experienced:

• Reduced deep, restorative sleep.
• Frequent nighttime waking without explanation.
• Altered circadian rhythms, possibly linked to changes in neurons that regulate sleep.

These findings open new possibilities for earlier detection and patient care, pointing to sleep disturbances as potential early markers of ALS.

When Should You Worry?