Wanaume waacha chupi za polyester kwa sababu za uzazi

Utafiti umebainisha kuwa wanaume wanaacha kuvaa chupi na kaptula za polyester ili kulinda mbegu za uzazi. Wanazipitisha chupi za pamba au manyoya ambazo zinaonekana kuwa salama zaidi kiafya. Hii inatokana na kemikali katika polyester zinazoathiri ubora wa mbegu za kiume.

Kulingana na utafiti uliochapishwa katika jarida la The Wall Street Journal, chupi zilizotengenezwa kwa vitambaa vya polyester, vinavyokuwa na plastiki, zina kemikali zinazohusishwa na athari hasi kwenye mbegu za uzazi kwa wanaume. Wanasayansi wameeleza kuwa plastiki ndogo zisizoonekana mara nyingi hupatikana katika hewa, chakula na maji, na hubeba uchafu unaoathiri viungo vya binadamu. Hii inaweza kusababisha magonjwa kama kansa, kutanuka kwa mishipa, magonjwa ya moyo na kuharibu seli za mwili.

Chupi zenye kubana na kujivuta, zilizoundwa kwa polyester, zimepata umaarufu mkubwa miongoni mwa wanaume vijana. Mtaalamu wa afya Jaime Knopman alisema, “Iwapo ni chupi ya plastiki ambayo imeshika sana korodani, basi hupunguza ubora wa mbegu za kiume, kiwango cha mbegu hizo na kuathiri uzazi wa wanaume.”

Mhadhiri wa Chuo Kikuu cha Columbia, Alex Robles, ambaye ni mtaalamu wa uzazi, alisisitiza hitaji la utafiti zaidi kuhusu aina za vitambaa na athari zao. Aliongeza, “Kuvalia chupi ambayo imekushika, kuketi kwa kipindi kirefu au kuendesha baiskeli huongeza kiwango cha joto na kumehusishwa na kupunguza ubora wa mbegu za kiume katika tafiti za awali.”

Baadhi ya wanaume wameripoti ubora wa mbegu kuongezeka wakati hawavaa chupi zinazobana. Watafiti wameshauri wanaume kuvaa chupi zisizobana, kuepuka joto, kula vyakula vyenye madini, na kuacha uvutaji sigara na unywaji pombe kupita kiasi ili kuboresha afya ya uzazi.

Makala yanayohusiana

Microscopic illustration of prostate tumor tissue containing higher levels of microplastics than nearby benign tissue, from NYU pilot study.
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Pilot study finds microplastics in most prostate tumor samples, with higher levels than nearby benign tissue

Imeripotiwa na AI Picha iliyoundwa na AI Imethibitishwa ukweli

Researchers at NYU Langone Health reported detecting microplastics in prostate tumor tissue from a small group of men undergoing prostate removal surgery, with average concentrations about 2.5 times higher in tumor samples than in nearby noncancerous tissue. The team says the findings, scheduled for presentation Feb. 26, 2026, at the American Society of Clinical Oncology’s Genitourinary Cancers Symposium, add early evidence that microplastic exposure could be relevant to prostate cancer but do not establish cause and effect.

A clinical trial suggests that men who ejaculate within 48 hours before providing sperm samples for IVF achieve higher ongoing pregnancy rates than those who abstain longer. The study, involving over 450 men, found a 46% success rate in the shorter abstinence group compared to 36% in the longer one. Experts note potential benefits but call for further research on live births and other factors.

Imeripotiwa na AI

A new research paper challenges the assumption that natural fibers biodegrade quickly, finding cotton dominating 150-year-old sediments in Rudyard Lake, Staffordshire, UK. Co-authored by Carry Somers of Fashion Revolution, the iScience study urges the fashion industry to base sustainability claims on science. It highlights ongoing debates between natural and synthetic fiber impacts.

A new systematic review indicates that microplastics could trigger brain inflammation and damage through several biological pathways, potentially worsening neurodegenerative diseases like Alzheimer's and Parkinson's. Researchers from the University of Technology Sydney and Auburn University identified five mechanisms linking these tiny plastic particles to brain health risks. Adults ingest about 250 grams of microplastics annually from various everyday sources.

Imeripotiwa na AI

Researchers at Uppsala University are launching a new treatment study to help young adults who have had cancer address issues related to sexuality and fertility. Around 40 participants aged 18-39 are involved in a 12-week internet-based program. The study is expected to include a total of about 250 people.

Researchers at the University of Michigan have discovered that common nitrile and latex lab gloves release particles resembling microplastics, potentially inflating pollution estimates. The study, led by Madeline Clough and Anne McNeil, traced contamination to stearates in the gloves during sample preparation. Switching to cleanroom gloves could reduce false positives significantly.

Imeripotiwa na AI

Scientists at Tokyo Metropolitan University have identified polymer-coated fertilizers as a significant source of ocean microplastics, with pathways from farmland directly influencing how much reaches shorelines. Their study reveals that direct drainage from fields to the sea results in far higher beach accumulation than river transport. This work sheds light on the elusive fate of plastics in marine environments.

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