Why did I still contract a sexually transmitted infection despite using a condom, and did I use it incorrectly? (Hung, 23, Hanoi)

Many people believe oral sex carries a lower risk of sexually transmitted diseases, particularly gonorrhea and syphilis. But is this perception accurate?

Many say sex helps relieve tension and stress, but does engaging in sexual activity while angry reduce libido, diminish quality of life, or even lead to a loss of behavioral control? (Hoa, 22, Hanoi)

I often dream about sexual intercourse, about three to four times a month, but I don't dare tell my husband. Is this due to excessive pressure or stress? (Lan Anh, 29, Hanoi).