Heterosexual married sexagenarian male...

Other terms for said phenomena are
"brain tingles" and "head orgasm."
This sensation is described as a pleasant,
even euphoric, tingling warmth and/or feeling
of relaxation that comes in waves across
the head, neck, and spine.
This phenomenon is often triggered
by soothing auditory
and/or visual experiences.
Though puzzled regarding
the minor biochemical
or perhaps neurological mystery
underlying tumbling, plummeting,
and nosediving libido of mine,
nevertheless, I blessedly accept reality,
whereby once raging testosterone
figuratively analogous to former gushing spigot
of hormonal secretion
now (yes pun intended) runs bone dry
and (contrary to any fallacy),
NOT sorely missed!

Yours truly (me) surmises absent sex drive
linkedin to side effects of one or more
of the nine prescription medications
taken to offset anxiety, dysthymia,
palmar hyperhidrosis (sweaty palms),
obsessive compulsive disorder, and
restless leg syndrome)
subsequently an aspiration arose to arouse
at least one unsuspecting reader
to experience mental excitement
courtesy yours truly
(mine) poetic and prosaic foreplay,
especially concocting double entendres
that titillate Wernicke's area, i.e.
a critical language area
in the posterior superior
temporal lobe connects
to Broca's area via a neural pathway.
Wernicke's area is primarily involved
in the comprehension.

Historically, this area
associated with language processing,
whether it is written or spoken.

Unlike setting up blind dates for myself
more than half my lifetime ago
(with long sought after ambition, expectation,
and utilization answering call of the wild
read for tactile sensory sensual experience)
courtesy, Craigslist, Philadelphia Magazine,
Single Book lovers, or other mediums
to post or answer
personal classified advertisements;
nowadays, the quest when responding
to friendship requests thru Facebook
ala Messenger sofa now couched
with intent for platonic familiarity.

If/when words masterfully baited
usage of English Language
without recourse to any rhyme nor reason
admittedly, gloriously, and undoubtedly created
upsurge of... palpable excitement,
though medical experts invariably
would most likely challenge
if I actually averred (honest to dog)
coalition, fusion, integration,

et cetera of genitalia
between consensual adults in general,
and oral intercourse in particular execrated
from fervid, lurid,
or perfervid fantasies of mine;
methinks attaining the big "O" oversaturated,
cuz in my paradigm,
no erogenous zones need get sated
to attain contentment eliciting joie de vivre.

An intense passion runs rampant
when reading and
to a slightly lesser degree writing
about pleasurable sensations
affecting the mind imbibing
heavenly essences helped along,
when heightened state of mental acuity
brought about thru restful sleep
coaxed along with five hour energy drink,
or other caffeinated beverage.

Exercising on the stationary bicycle
(no way to determine distance traversed
since I removed odometer and other
sundry mechanisms), nevertheless
key objective regarding cardiological workout felt
cause resistance to push pedals
set to highest tension, generates mild euphoria,
which approximation of nirvana
heightened while concentrating reading out loud
hearing thought provoking material.