What are the differences between sun protection products?

I find choosing among all of the available sunscreens and sunblocks to be very confusing. Of the following three products I am currently using, which one is giving my skin the most protection: sunscreen SPF 30 with UVA, UVB, and IR sun protection; sunblock SPF 17 with UVA, UVB, and IR sun protection; or, sunblock SPF 50 with UVA and UVB sun protection? By the way, what is the difference between a sunSCREEN and a sunBLOCK?


Do mumps and swollen testes affect fertility?

I have a question about mumps: I had mumps while I was thirteen-years-old. I remembered that because of embarrassment. I was afraid to tell my parents about the inflammation (swelling of the testicles) at the same time I had mumps. I did not have treatment for the swelling of my testicles due to mumps. Later, the swelling went away about the same time as my mumps. Although I still can produce semen, I am deeply disturbed whether that swelling could have hindered my fertility (i.e., no production of sperm due to the blockage of the sperm channels).


What are some tools for managing stress?

I have this problem with my studies. I feel that I need to work 24 hours a day in order just to keep up. I have been getting panic attacks and outbreaks of eczema because I am so stressed out. Can you advise me of any relaxation techniques that will allow me to unwind after a hard day?


What can I do if I'm sexually harrassed on the train?

I commute into the city every work day and usually take the same trains each day. Some time ago another man made a pass at me which I ignored. He persisted and made several other passes over the course of time. At one point, he looked rather pointedly at my empty ring finger. The next phase of events involved his pointing me out to other men he was with and asking about me. The next phase involved his becoming very agitated whenever he saw me, pacing back and forth. When another man began to accompany him on the platform, I initially thought my worries were over and that he had found somebody. Later, he began making passes again, sometimes with his companion joining him. I'm fairly introverted so the easiest thing for me to do has been to ignore everything. I'm also not homophobic. I know that most of the men that I know would never have tolerated his actions and I feel that he has taken advantage of my tolerance. I think he may also be misinterpreting my reaction!!

Sometimes I feel that I am locked into some mutually destructive game with him. Needless to say, this has all been rather stressful for me and I would like the situation to end. I've tried changing trains, but this is difficult for me because of my schedule. I'm interested in your reaction to the situation and any solutions you propose.