Train, bus or fly from Beijing to Shanghai Maglev Train? China Railways G-Class operates a train from Beijing to Shanghai Maglev Train every 2 hours. Tickets cost $130 - $160 and the journey takes 4 h 48 min. Shanghai Metro also services this route every 10 minutes.
Pollen allergies aren't usually characterized by a sore throat, and headaches are among the less common symptoms of a pollen allergy. The more typical symptoms of a pollen allergy -- also called allergic rhinitis or hay fever -- are a runny nose, sneezing, itchy or water eyes, nasal congestion and an itchy throat.
Estrogen and other hormones increase and then begin to cycle at puberty, resulting in a surge in headache activity for many girls. The cycling of hormones and other body chemicals with monthly menstrual periods often causes a marked increase in headache frequency and severity with menstrual flow and, to a lesser extent, mid-cycle with ovulation. A variety of factors contribute to a reduced headache threshold with menstruation: