A.they must reach the age of 60 |
B.they should be easy to make friends with |
C.they must swim outdoors at least 8 times in the four cold months |
D.they must agree to swim outdoors from November through February |
A.encourage people to take part in cold-water swimming actively |
B.point out the possible danger of blood illness during cold-water swimming |
C.believe swimming is helpful both in winter and in summer |
D.have different ideas about the medical effects of cold-water swimming |
A.they can remain young |
B.it is an easy way to keep the body warm in winter |
C.they find it enjoyable and interesting |
D.they might meet fewer troubles in life |
A.a group of cold-water swimming lovers |
B.the polar bears' life |
C.doctors' ideas about cold-water swimming |
D.the requirements of the Polar Bear Club |