In "Curious George: Life in Ottawa"

Where are they moving from? They should bring lots of warm clothes, or their first shopping trip should be to Mountain Equipment Co-op. I remember a January in Ottawa where the temperature never went above -20 Celsius.

In "Curious George: Vasectomy"

On a more scientific note, there don't seem to be any published studies on wanking and time to azoospermia, but there is a study on sperm clearance: Gomez de Vicente JM. Romero Cagigal I. Blanco C. Pastor J. Moreno Santurino A. Santos Arrontes D. Miravalles E. Berenguer Sanchez A. [The natural history of sperm cleareance after vasectomy]. [Spanish] Actas Urologicas Espanolas. 28(4):286-9, 2004 Apr. OBJECTIVE: To study the time required to obtain a negative sperm analysis after vasectomy. MATERIAL AND METHODS: We reviewed 239 consecutive vasectomies performed between september 1998 and september 1999. All of them were done in an ambulatory basis. Follow up interval was 41-853 days (mean 144, median 104). The first semen analysis was requested between 1 and 6 months after the surgical procedure. If the sample still showed spermatozoa, then a new one was requested every two months. Probability of becoming azoospermic was studied with Kaplan-Meier curves. RESULTS: Persistent spermatozoa could be found in 31 patients (13%) at the end of follow-up. Despite having a positive semen analysis, 10 patients (4.2%) discontinued medical visits. Time required to obtain a negative sperm count ranged from 58 to 362 days (mean 133, median 99). The probability of being azoospermic 200 and 260 days after vasectomy was 80-90% respectively. A total of 328 semen analysis were requested (range 1-4, mean 1.37, median 1) CONCLUSIONS: A minimum of 200 days (6.6 months) are needed to clear all the spermatozoa in semen after vasectomy in 80% of our patients. Requesting the first semen sample 7 months after vasectomy is cost-effective, reducing unnecesary medical visits and increasing the rentability of this test.Institution Departamentos de Urologia, Hospital Universitario de Getafe, Madrid. On a more personal note, my neice was conceived six months after my brother-in-law's vasectomy. My sister made him go for his repeat vasectomy just after the birth so they could "share the pain".

(limited to the most recent 20 comments)