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WebMD Symptom Checker

Brittle hair, Decreased sweating, Difficulty staying awake during day and Forgetfulness

WebMD Symptom Checker helps you find the most common medical conditions indicated by the symptoms brittle hair, decreased sweating, difficulty staying awake during day and forgetfulness including Sleep apnea, Medication reaction or side-effect, and Narcolepsy.

There are 18 conditions associated with brittle hair, decreased sweating, difficulty staying awake during day and forgetfulness. The links below will provide you with more detailed information on these medical conditions from the WebMD Symptom Checker and help provide a better understanding of causes and treatment of these related conditions.

  • Sleep apnea

    People with sleep apnea stop and restart breathing multiple times while sleeping.

  • Medication reaction or side-effect

    Medication side effects include nausea, vomiting, stomach upset, weakness, dizziness, seizures, and more.

  • Narcolepsy

    Narcolepsy is a brain disorder that makes people abnormally sleepy at times during the day.

  • Dehydration (Children)

    Dehydration, or not getting enough fluid, causes dry and sticky mouth, tearless crying, and more in children.

  • Sleep deprivation

    Sleep deprivation occurs when the lack of restful sleep is severe enough to compromise basic body functions.

  • Caffeine withdrawal

    If you suddenly stop drinking caffeine, you get withdrawal symptoms, such as headache, fatigue, and bad mood.

  • Normal age-related forgetfulness

    Age-related forgetfulness is the naturally occurs in many people after age 50.

  • Alzheimer's disease

    Alzheimer's disease is type of dementia that causes memory loss, as well as thinking and behavior problems.

  • Dehydration (Adult)

    Dehydration, or not getting enough fluid, causes low blood pressure, weakness, dizziness, fatigue, and nausea.

  • Hypothyroidism (adult)

    Hypothyroidism your body functions slow down, making you gain weight and feel tired all the time.

  • Insomnia

    Insomnia symptoms include trouble staying asleep at night, feeling tired during the day, moodiness, and more.

  • Restless legs syndrome

    Restless leg syndrome causes intense discomfort in your legs and an overpowering urge to move them.

  • Scleroderma

    Scleroderma is an uncommon immune disorder that causes collagen to build up in the tissue, making it harden.

  • Alopecia

    Alopecia, also known as losing hair or going bald, and is marked by a slowly receding hairline and balding.

  • Cocaine withdrawal

    Cocaine withdrawal may cause feelings ranging from anxiety, irritability and sleepiness to suicidal thoughts.

  • Amphetamine withdrawal

    The symptoms of amphetamine withdrawal include depression, fatigue, increased appetite, and sleep problems.

  • Intoxication

    Symptoms of intoxication include euphoria, slowed reaction time, dizziness, confusion, numbness, and more.

  • Hypothyroidism (infant and child)

    Hypothyroidism in children can cause delayed growth, weight gain, a puffy face, a large tongue, and more.