https://www.healthcentral.com/article/lassitude-fatigue-and-ms
Multiple SclerosisSymptoms

Lassitude and Multiple Sclerosis: More Than Just Normal Fatigue

If you're so tired, it feels like your soul is tired, you might have severe fatigue, or lassitude. Learn more about this type of fatigue with MS, and what it might mean to your daily life — and what you can do about it.

Fatigued woman unable to get out of bed.
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