50ea0daaa8aaf40bd689941daf77587a5366b292 — Nguyễn Gia Phong 4 months ago ae2d33f
Blog about nopoo
5 files changed, 214 insertions(+), 5 deletions(-)

M _css/style.css
A _rss/head.xml
A _rss/item.xml
M blog/index.md
A blog/nopoo.md
M _css/style.css => _css/style.css +4 -1
@@ 137,11 137,14 @@ html {
.franklin-content .bibref a,
.franklin-content .eqref a { color: var(--link-fg) }

.franklin-content table.fndef { border: none }
.franklin-content .fndef tr { text-align: left }
.franklin-content .fndef td, .franklin-content sup { font-size: 80% }
.franklin-content .fndef td.fndef-content { width: 100% }
.franklin-content .fndef td.fndef-backref { padding-left: 0 }
.franklin-content table.fndef {
    border: none;
    margin: 0;

/* Images */
.franklin-content img { width: 100% }

A _rss/head.xml => _rss/head.xml +37 -0
@@ 0,0 1,37 @@
<?xml version="1.0" encoding="UTF-8"?>
This is based on Yandex's https://yandex.com/support/zen/website/rss-modify.html

The scope of this segment is the GLOBAL scope (variables defined in config.md).
For instance 'website_url' or 'website_description'.

* namespaces (xmlns): https://validator.w3.org/feed/docs/howto/declare_namespaces.html
* best practices: https://www.rssboard.org/rss-profile
* fd2rss convers markdown to html and fixes or removes relative links
* fd_rss_feed_url is built out of {website_url}/{rss_file}.xml, you can change the
rss_file variable in your config file if you want to use something different than 'feed'
<rss version="2.0"

      <![CDATA[  {{fd2rss website_title}}  ]]>
    <link> {{website_url}} </link>
      <![CDATA[  {{fd2rss website_description}}  ]]>
      type="application/rss+xml" />
* items will be added here in chronological order
* the channel will then be closed

A _rss/item.xml => _rss/item.xml +60 -0
@@ 0,0 1,60 @@
This is based on Yandex's https://yandex.com/support/zen/website/rss-modify.html

The scope of this segment is the LOCAL scope (page variables). For instance 'rss_title'.

* the local var rss_description (or rss) *must* be given otherwise the item
is not generated.
* rss_title if not given is inferred from page title
* rss_pubdate if not given is inferred from the date of last modification
* the full content is not added by default but can be if the variable rss_full_content
is set to true (either globally or locally).
* RFC822 or RFC1123 is a date format required by RSS.
* there is debate about supporting one or several enclosures
(see https://www.rssboard.org/rss-profile#element-channel-item-enclosure).
We use the conservative 'only one' approach by default but you could tweak this by
defining your own `rss_enclosures` variable with a list of string and use that.
    <![CDATA[  {{fd2rss rss_title}}  ]]>
  <link> {{fd_full_url}} </link>
  <guid> {{fd_full_url}} </guid>
    <![CDATA[  {{fd2rss rss_description}}  ]]>

  <!-- note that fd_page_html is already HTML, so we don't use fd2rss here -->
  {{if rss_full_content}}
    <![CDATA[  {{fix_relative_links fd_page_html}} ]]>

  <!-- RFC1123 enforces a RSS-compliant date formatting -->
  <pubDate>{{RFC822 rss_pubdate}}</pubDate>

  <!-- if given this must be an email, see specs -->
  {{isnotempty rss_author}}
  <author> {{rss_author}} </author>
  {{isnotempty author}}

  {{isnotempty rss_category}}
  <category> {{rss_category}} </category>

  {{isnotempty rss_comments}}
  <comments> {{rss_comments}} </comments>

  {{isnotempty rss_enclosure}}
  <enclosure> {{rss_enclosure}} </enclosure>

M blog/index.md => blog/index.md +6 -4
@@ 4,9 4,11 @@ I occasionally blog about functional programming, lambda calculus
and other computational stuff, or anything related to computers in general.
These write-ups are tagged as [`fun`](/tag/fun).

As usual, the good old [RSS feed](/feed.xml) is available.
I sometimes note what happens in meatspace as well.  Such writings
might still have a thing or two to do with computing (given it is
integrated into my life) and they are tagged as [`lyf`](/tag/lyf).

If you are instead looking for the more formal literature of mine,
they are listed in [my ORCID profile][].
As usual, the good old [RSS feed](/feed.xml) is available.

[my ORCID profile]: https://orcid.org/0000-0003-2336-706X
If you are instead looking for the more formal literatures of mine,
they are listed in [my ORCID profile](https://orcid.org/0000-0003-2336-706X).

A blog/nopoo.md => blog/nopoo.md +107 -0
@@ 0,0 1,107 @@
rss = "To Poo or Not to Poo"
date = Date(2021, 5, 23)
@def tags = ["hair", "poo", "lyf"]

# To Poo or Not to Poo

Late April 2021, Việt Nam witnessed the beginning of the fourth wave
of SARS-CoV-2 after a few months without any community case.  Soon enough,
students are told to not come to their schools' campus.  This happens
when I was an intern at [USTH][] [ICTLab][], so I was advised to work remotely
as well.  I asked for this at the start of the internship but my supervisor
was rather reluctant, since there was multiple interns working together
and communication in person might be most effective.  Working from home
was beneficial to me in a few important ways:

1. I had a three-monitor setup at home and a more comfortable space.
2. I could have be more flexible working hours at home.
3. I did not have to bike back and forth to the lab (which is 4 km away)
   twice a day[^1], which could be exhausting in the hot summer.

Thanks to the last point, I also sweat a lot less and as I no longer
had to maintain a public appearance, I decided to give `#nopoo` a try.
I had been aware of such practice for quite a few years, but had never
thought of actually implementing it until I saw [Johnny Harris' vlog][],
which I can only describe as *intriguing*.  TL;DW the journalist
maintained that generally shampoos washed away *his* scalp's natural oil,
and in combination with other hair products made the scalp itchy and unhealthy.
*His* solution was to drop the use of all products completely and so far
it had been working *for him*.[^2]

Well, my head was itchy sometimes (still itchy at the time of writing),
alors, [pour la patrie, les sciences et la gloire][X], let's do it!

## Day One

I was going full no poo, no soap, no baking soda, no vinegar, *just water,
raw water*.  Everything was going as expected, my hair was not as fluffy
as usual after washing, but it was easier to get in shape.  I didn't really
style my hair.  Not as a fashion statement, I was (still am!) just rather lazy.
Usually this wasn't an issue, unless when my hair was long, it tent to cover
my forehead, ears and eyes, which was arguably an uncomfortable experience.
Having the hair stay in place was indeed a blessing!

## Day Two

My hair started to feel thicker and running hands through it no longer
felt simulating.  On the bright side it looked fabulous and did not itch.

## Day Four

My hair and scalp began to feel greasy.  I guess it was because I did not
wash it thoroughly that day.  With just water one would need to take more
effort scrubbing the hair and especially the scalps to return them
to a comfortable state.  Plus my mentality got worse so my perceived
experience could be exaggeratedly negative.

## Day Five

I worked out and paid more attention to the hair washing process.
It felt noticeably better.

## Day Six

The brief revival of my mental health did not last very long:[^3]
later that day I was completely autopiloting and accidentally poo'ed myself.
It felt fluffy again but I was disappointed that things did not go as planned.

## Day Seven

I decided to cut my hair.  I had been doing so for a decade when I wrote this,
but I got neither better nor faster at it, so it only happens twice or thrice
a year.  Of course I had to poo myself after to get rid of all the tiny pieces.

## Day Eleven

Fast forward a few days it started to feel greasy again, but this time the hair
was shorter so it was less of an issue.  I began to apply [saline] to the hair
after washing and somehow it helped a lot in improving the situation.  Saline
was also my solution for face acne in my teenage year (along with finger nails
and pillowcase hygiene).

## Day Fifteen

At this point the experience had become more stable.  My scalp
still itched occasionally but seemly less often than when I was poo'ing
more regularly.  The hair stayed in shape with merely any effort
(I didn't even use a comb).

Overall, the difference is barely noticeable otherwise but I think I will be 
continuing holding my poo for another while, probably in long term.
Do not let my experience speak for you, however, try it yourself if you are
interested, but keep observing the effect objectively.

[^1]: I usually had lunch at home with my parents.
[^2]: Emphases *his*.[^4]
[^3]: I later discovered that this was due to the lack of [sunlight].
[^4]: He stressed that this might not be the case for everyone.[^5]
[^5]: OK, I get it, footnotes are distracting.

[USTH]: https://usth.edu.vn
[ICTLab]: https://ictlab.usth.edu.vn
[Johnny Harris' vlog]: https://www.youtube.com/watch?v=T-_HKFjxVl0
[X]: https://polytechnique.edu
[sunlight]: https://www.sunlightdish.com
[saline]: https://en.wikipedia.org/wiki/Saline_(medicine)