21.   The cause is unknown, but ophthalmologists have long suspected that it is caused by pressure on the optic nerve.

22.   The financial pressure caused relations with his wife to deteriorate further.

23.   The gaming pressures have caused the Nipmuc to split into several factions.

24.   The pressure causes the gloves to inflate out into the room like a row of waving arms.

25.   While academic pressure may not cause mental illness, it can act as a trigger.

26.   Analysts said there is little evidence wage pressures will cause inflation.

27.   Australian Olympic Committee, citing ill health caused by pressure from the scandal.

28.   By middle age, skull pressure often causes incurable headaches, even sudden death.

29.   Coles on Friday announced his resignation from his paid position with the Australian Olympic Committee, citing ill health caused by pressure from the scandal.

30.   Examinations, peer and social acceptance pressure can cause teenagers to indulge in unhealthy diets or practices.