Another possible cause is that many women experience a heightened sense of taste and smell while pregnant, which can make nausea feel worse when unpleasant or strong odours are around.

• 另一个可能的原因是,许多女性意识和经验,同时品味、嗅觉怀孕如果能在不愉快或糟糕感到恶心强烈气味身边。