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Something I didn’t know earlier today:

If you are diagnosed with an underactive thyroid, you can still donate blood as long as:

• Your (levo)thyroxine dose has not changed in the last 3 months
• You feel fit and well
• Your hypothyroidism is not due to any malignancy, nor have not undergone surgery on your thyroid

Via the National Blood Service.

Via War is Boring:

photo: Una Moore

Here’s an SVG version if you want to play about with it yourself