Fungi possess cell walls made of the glucosamine polymer chitin, and algae typically possess walls made of glycoproteins and polysaccharides. Unusually, diatoms have a cell wall composed of biogenic silica.
While stress does not appear to cause thyroid problems, a person with an overactive thyroid would typically be anxious and could definitely feel more stressed than usual. Also, if you take thyroid hormone pills for an underactive thyroid gland, your dose may be too high.
But if your thyroid produces too much, it can cause anxiety symptoms, such as nervousness, irritability, heart palpitations, and sleeplessness. If you have anxiety symptoms along with swelling in your neck, weight loss, weakness, fatigue, or heat intolerance, ask your doctor to check your thyroid gland.