Parkinson's News

Why Parkinson’s Can Cause Toe Curling and Foot Cramps

Parkinson's dopamine loss disrupts the brain circuits controlling foot muscles, causing painful toe curling and cramping—often worst when medication wears off.

Why Parkinson’s Movements Become Smaller

As dopamine-producing brain cells die in Parkinson's disease, the basal ganglia lose their ability to amplify motor commands, causing movements to shrink in size...

What Is Dyskinesia in Parkinson’s Disease?

Dyskinesia is an involuntary movement complication from long-term levodopa that affects 40% of Parkinson's patients within five years.

What Is Dyskinesia in Parkinson’s Disease?

Dyskinesia is involuntary movement caused by Parkinson's medication—not the disease itself—and becomes more common as medication dosages increase over time.

What Is Dystonia in Parkinson’s Disease?

Dystonia in Parkinson's disease causes involuntary muscle contractions and abnormal postures—a sustained twisting movement distinct from tremor.

Why Parkinson’s Can Cause a Stooped Posture

Parkinson's causes stooped posture by damaging dopamine-producing neurons that normally control balance and keep the spine upright.

What Is Postural Instability in Parkinson’s Disease?

Postural instability—the loss of automatic balance reflexes—does not respond to standard Parkinson's medications and ranks among the disease's most serious causes of falls and...

What Is Festination in Parkinson’s Disease?

Festination makes legs and movements accelerate involuntarily in Parkinson's disease, creating dangerous unpredictability.

Why People With Parkinson’s Have Trouble Turning

Turning in Parkinson's requires coordinated activation of the basal ganglia, the brain region that loss of dopamine disrupts.

What Is Freezing of Gait in Parkinson’s Disease?

Freezing of gait—a sudden inability to move the feet—affects up to 60% of people with Parkinson's disease and often worsens over time.

Why Parkinson’s Disease Causes Shuffling Steps

Dopamine loss in Parkinson's breaks the automatic motor circuits that control smooth walking, forcing the body into characteristic shuffling steps.

What Does Parkinson’s Muscle Rigidity Feel Like?

Parkinson's rigidity feels like your muscles are constantly tense and resisting movement, affecting your limbs, torso, and sometimes your face.

What Is Bradykinesia in Parkinson’s Disease?

The slowness at the heart of Parkinson's disease has a name, a cause, and a surprising number of ways to fight back against it.

Can Parkinson’s Disease Occur Without Tremor?

Tremor is Parkinson's most famous sign, yet up to a third of patients never shake at all. Here's what that looks like.

Why Stress Can Make Parkinson’s Tremor Worse

The same adrenaline that races your heart in a tense moment can turn a barely-there Parkinson's tremor into violent shaking.

Does Parkinson’s Tremor Stop During Sleep?

Parkinson's tremor stops during most sleep stages, returning within minutes of waking—a temporary but significant daily reprieve.

Can Parkinson’s Tremor Affect the Head?

Head tremor affects roughly 5-10% of people with Parkinson's and is harder to hide than hand tremor, but often responds to medication adjustments.

Can Parkinson’s Tremor Affect the Jaw?

Jaw tremor affects roughly one in four people with Parkinson's, impacting speech, eating, and daily function in ways often overlooked.

Can Parkinson’s Tremor Affect the Legs?

Leg tremor affects roughly one-quarter to one-third of people with Parkinson's, causing rhythmic shaking that typically improves with movement and medication.

Why Parkinson’s Tremor Often Starts in One Hand

Early Parkinson's tremor strikes one hand because dopamine neurons die unevenly in the brain, affecting movement control on that side first.

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