These Lifestyle Factors Are Linked To Sperm Damage

By Kathryn Doyle (Reuters Health) – - Certain lifestyle factors are linked to higher rates of damage in the genetic material in men’s sperm, a study suggests.  The damage - which may stem from factors like obesity, stress and even cell phone use - could affect men's ability to conceive as well as the genes passed to their children, researchers say. Semen analysis usually looks at the numbers and the condition of whole sperm. But the authors of a small study in Poland believe the degree of breakage, or fragmentation, in DNA strands in the sperm might be a better indicator of fertility. DNA carries the cell's genetic information and hereditary characteristics. Men with fragmentation have lower odds of conceiving naturally and through procedures like in vitro fertilization, they write in the International Journal of Impotence Research. Researchers have noticed before that lifestyle factors can influence the level of sperm DNA fragmentation, said Ricardo P. Bertolla of Sao Paulo Federal University in Brazil, who was not part of the new study. “More importantly, we do expect that environmental and lifestyle factors may influence male fertility, but the degree of response is highly variable among individuals,” Bertolla told Reuters Health by email. Dr. Marian Radwan of Gameta Hospital in Rzgow, Poland, focused their study on 286 men under age 45 who were attending an infertility clinic. Radwan did not respond to a request for comment. Most of the m...
Source: Science - The Huffington Post - Category: Science Source Type: news

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RESUMO: Objetivo: Analisar o uso de subst âncias psicoativas (tabaco, álcool e drogas ilícitas) em escolares em relação a fatores sociodemográficos, contexto familiar e saúde mental. Métodos: Foram utilizados dados da amostra de 102.301 escolares do nono ano da Pesquisa Nacional de Saúde do Escolar de 2015. Realizou-se o cálculo da prevalência de uso de tabaco e de álcool nos últimos 30 dias e experimentação de drogas, segundo variáveis sociodemográficas, contexto familiar e saúde mental. Procedeu-se ...
Source: Revista Brasileira de Epidemiologia - Category: Epidemiology Source Type: research
Conclusion: Family and school appear to be protective factors, especially when there is direct supervision and care. It is important that both girls and boys are given the same attention when it comes to this this subject.
Source: Revista Brasileira de Epidemiologia - Category: Epidemiology Source Type: research
Conclusion: The results show the possibility of reverse causality between consumption of sweetened soft drinks and zBMI in the overweight adolescents group. For eutrophic male adolescents, soft drink consumption can potentially increase the chances of having higher zBMI, which reinforces the need for measures to significantly r educe the consumption of this beverage.
Source: Revista Brasileira de Epidemiologia - Category: Epidemiology Source Type: research
Conclusion: There are differences according to gender, and, in general, women accumulate more protective factors and men, more risk factors.
Source: Revista Brasileira de Epidemiologia - Category: Epidemiology Source Type: research
Conclusion: Our findings contributed to the identification of the most vulnerable population groups to unhealthy dietary patterns and to the understanding of the coexistence of different food habit determinants among adolescents.
Source: Revista Brasileira de Epidemiologia - Category: Epidemiology Source Type: research
Conclusion: Organizing health services in a way that takes the particularities of this population into account may provide a space to deal with subjects related to the risks to which it is exposed.
Source: Revista Brasileira de Epidemiologia - Category: Epidemiology Source Type: research
RESUMO: Objetivo: Analisar as estimativas de tend ência sobre a prevalência de comportamentos de risco e proteção para doenças crônicas não transmissíveis em adolescentes, segundo dados da Pesquisa Nacional de Saúde do Escolar em 2009, 2012 e 2015. Métodos: Foram utilizados dados dos três estudos transversais nas capitais brasileiras e no Distrito Federal. No total, entrevistaram-se 173.310 adolescentes matriculados no 9º ano do ensino fundamental, com idade média de 14 anos. Foram estimadas pelo modelo de regressão linear as preval...
Source: Revista Brasileira de Epidemiologia - Category: Epidemiology Source Type: research
Conclusion: The use of other tobacco products was high and has been increasing in recent years, particularly waterpipe. It is important to raise awareness of the risks and monitor the use of these products, as well as improve public policies of tobacco control in the country.
Source: Revista Brasileira de Epidemiologia - Category: Epidemiology Source Type: research
Conclusion : The impact of risky behaviors on physical and emotional health need to be addressed among students. The school presents itself as a safe and opportune space for promoting a healthy lifestyle.
Source: Revista Brasileira de Epidemiologia - Category: Epidemiology Source Type: research
Conclusion: The results showed early alcohol experimentation and occurrence of problems due to its use among Brazilian adolescents. In addition, the lack of monitoring by parents and guardians shows a risk of alcohol use in this age.
Source: Revista Brasileira de Epidemiologia - Category: Epidemiology Source Type: research
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