Vitamin C deficiency can also cause hair to grow in bent or coiled shapes due to defects that develop in the protein structure of hair as it grows ( Corkscrew-shaped hair is one of the hallmark signs of vitamin C deficiency but may not be obvious, as these damaged hairs are more likely to break off or fall out ( Hair abnormalities often resolve within one month of treatment with adequate amounts of vitamin C ( Summary Abnormally bent, coiled or corkscrew-shaped body hairs are a hallmark sign of vitamin C deficiency, but they may be difficult to detect, as these hairs are more likely to fall out
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Tremor: can occur at rest, in the hands, limbs, or can be postural Muscular: stiff muscles, difficulty standing, difficulty walking, difficulty with bodily movements, involuntary movements, muscle rigidity, problems with coordination, rhythmic muscle contractions, slow bodily movement, or slow shuffling gait Sleep : early awakening, nightmares, restless sleep, or sleep disturbances Whole body: fatigue, dizziness, poor balance, or restlessness Cognitive: amnesia, confusion in the evening hours, dementia, or difficulty thinking and understandin Speech: difficulty speaking, impaired voice, soft speech, or voice box spasms Nasal: distorted sense of smell or loss of smell Urinary: dribbling of urine or leaking of urine Mood: anxiety or apathy Facial: jaw stiffness or reduced facial expression Also common: blank stare, choreoathetosis, constipation, depression, difficulty swallowing, drooling, falling, fear of falling, loss in contrast sensitivity, micrographia, neck tightness, trembling, or weight loss

References Witschi, A., Reddy, S., Stofer, B