“There’s so much personal preference and variation here,” said Jennifer Martin, PhD, spokesperson for the American Academy of Sleep Medicine and professor at Herbert Wertheim College of Medicine at Florida International University. Side sleepers may prefer something with a softer feel to reduce pressure, she said, but people with back pain “seem to do better” on a firmer mattress.
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French rescue centres have been overwhelmed, with sick birds being transferred across the national wildlife network to relieve the most overstretched facilities.，更多细节参见PDF资料
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