00:00this is yet another thing in our
00:01environment that could be impairing our
00:04testosterone and fertility and that is
00:07the type of underwear that men are
00:14basis so for those of you who are brand
00:16new to my channel my name is Lucas the
00:18founder of busher biology in this video
00:21what I'm going to do is explore the
00:22dangers of wearing a specific type of
00:25underwear and we'll go into detail about
00:28how this particular underwear can
00:30actually destroy fertility and lower
00:33testosterone levels and the type that
00:36I'm referring to is polyester now
00:39polyester underwear is actually a
00:42synthetic fabric commonly used in
00:45clothing and it's actually made from
00:48petroleum based products and does not
00:50contain natural fibers like cotton or
00:53wool so I actually want to ask you guys
00:55to do a quick check right now I'd
00:58imagine every single guy watching this
01:00video right now is wearing underwear so
01:02please double check what you're wearing
01:05right now I'll give you 2 seconds to do
01:08so and have a look at what material your
01:13underwear is made from is it made from
01:17polyester and if so then I'd ask you to
01:21please reconsider wearing polyester now
01:25that is because polyester is basically
01:28plastic and can break break down into
01:31microplastics which can release a lot of
01:34chemicals that can be absorbed
01:36effectively from the scrotal skin now as
01:39I've mentioned before in the past why we
01:42need to be avoiding wearing various skin
01:45products various um skin lotions and
01:48even sunscreen a lot of these products
01:51xenoestrogens otherwise known as
01:53endocrine disrupting chemicals and they
01:56do get absorbed into the body via the
02:00and so polyester fabric otherwise known
02:05terate is a synthetic or manmade fiber
02:09material made by combining coal oil and
02:13water and can affect fertility in both
02:15men and women now here's the first study
02:19that completely shocked me when I came
02:20across it the study was titled
02:22contraceptive efficacy of polyester
02:25induced azospermia in normal men now
02:29this study was conducted back in
02:321992 which noted that polyester can in
02:37fact act as a 100% contraception in men
02:59an electrostatic field across the
03:04structures the second is disordered
03:07Thermo regulation so to conclude fertile
03:11men can be rendered Asos spermic by
03:15wearing the polyester sling and the
03:18authors noted that it is a safe
03:20reversible acceptable and inexpensive
03:23method of contraception in men so in
03:27addition to this polyester underwear has
03:29been linked with miscarriages and
03:32infertility in women and sterility and
03:35impotence in men now in my opinion and
03:38based upon various clinical studies
03:41polyester should not touch the skin and
03:44it's absolutely the worst fabric for
03:47your body and for the environment and
03:49has been associated with miscarriages
03:52infertility stability insomnia heart
03:55liver kid kidney and skin ailments yet
03:58it's one of the most popular synthetic
04:00materials that's absolutely everywhere
04:03now polyester is actually a type of
04:05plastic meaning it has no breathability
04:09and is hot and sweaty to wear itself now
04:14when you sweat in polyester it actually
04:17releases the chemical antimon oxide
04:21which is partially dissolved with sweat
04:24and then absorbed by the skin now this
04:26antimony is a known Carin
04:30and can cause heart liver kidney and
04:33skin ailments and if that's not bad
04:36enough polyester in pillows and bedding
04:39is a huge cause of insomnia headaches
04:42fatigue and overall bad sleep since it
04:45gets in the way of your body's
04:47temperature regulatory
04:49processes now polyester is also one of
04:52the most polluting fabrics and it takes
04:57decompose and it sheds up to 700,000
05:00polyester microplastic fibers that come
05:04off in each hot wash ending up in our
05:07rivers oceans and our Seafood now
05:11polyester has no redeeming qualities at
05:14all it's time we stop buying it and
05:17manufacturers stop making it now
05:19unfortunately polyester is ubiquitous so
05:22it takes quite a lot of effort to avoid
05:25it and your best bet is to opt for
05:28natural Fabrics like cotton silk and
05:31wool guys listen up I'm sure you're
05:34aware of the importance of
05:35personalization when it comes to
05:38optimizing your health that is why I'm
05:40offering a free 15minute boost your
05:43biology strategy session with a senior
05:45member of my team where we'll chart out
05:48a personalized plan for Success so that
05:51you stop guessing when it comes to
05:53different supplements diets training and
05:56lifestyle strategies so be sure to check
05:58that link out in the video description
06:00down below so the key points here is
06:01that the best types of underwear that
06:04men should be aiming for are cotton silk
06:07and wool now these days polyester is a
06:10commonly used synthetic material for
06:12underwear and it has been shown to hold
06:14in the Heat and is less breathable than
06:17other materials and as you many of you
06:21already know the testicular temperature
06:23may rise and this can lead to scrotal
06:26heat stress and as many of you who
06:29follow me on YouTube and and my
06:32Instagram Channel you've seen me talk
06:35about the importance of icing your
06:36testicles I mean this is the exact
06:39opposite of that that is wearing
06:41polyester underwear can actually heat up
06:43the testes and lead to impaired
06:45spermatogenesis and also testosterone
06:47production this next study here was
06:49conducted in 2022 the title was chronic
06:52exposure to polyester microplastics
06:56induced male reproductive toxicity and
06:58decreased testosterone levels via the
07:03mediated pathway now this next study
07:06here was titled type of underwear worn
07:09and markers of testicular function among
07:12men attending a Fertility Center the
07:14authors of the study noted that men who
07:17primarily wore boxer shorts had a
07:19statistically significant 25% higher
07:23concentration 177% higher sperm count
07:2833% more more swimming sperm in a single
07:31ejaculate and 14% lower FSH levels than
07:36men who did not usually wear boxes now
07:40bear in mind that it's very important to
07:42note here that the key reason why
07:45polyester underwear can lower
07:46testosterone is number one the buildup
07:49the of the intra scrotal static charge
07:53and number two is the lack of
07:55breathability associated with wearing
07:57that type of underwear material so the
08:00main takeaway here is number one if
08:03you're watching this video right now and
08:04you care about your testosterone levels
08:06and your fertility please go into your
08:10bedroom open up the cupboard if you have
08:12any polyester underwear please get rid
08:14of it destroy it don't burn it just get
08:17rid of it throw it in the bin and
08:20instead opt for coal wood uh wool or
08:23silk and even um potentially wearing
08:26boxes so loose fitting under Weare so
08:30that pretty much wraps up today's video
08:32if you did learn something new please do
08:35share this video please leave a comment
08:36down below let's get a discussion going
08:38what are your thoughts on this
08:39particular topic thanks gentlemen I look
08:42forward to seeing you in the next
