← All Days
Day 6 — Mon, Apr 6

Beyond language: the other tools that shape how we feel

Day 5 showed that language is a powerful emotional tool. But language is not the only one. There are at least five other channels that directly affect our feelings and mood: color, food, music, chemistry, and film. Each one works differently. Some are ancient evolutionary mechanisms. Some are modern inventions that hijack those mechanisms. And some we barely understand at all. This entry is a first pass at mapping them out, with research questions I want to follow up on later.

  • As with language, there are other tools to achieve good feelings and mood. Language is one channel but the brain has many inputs
  • Color, food, music, chemistry, and film/visuals each have their own pathway into our emotional state
  • Some of these are deeply evolutionary (sugar cravings, color responses). Others are engineered to exploit those pathways (recreational drugs, film scoring)
  • The three main neurotransmitters behind mood and emotion: serotonin, dopamine, and noradrenaline. I want to understand how they work individually and together
  • Film is unique because it combines multiple emotional channels at once: visuals, music, color, story. No other art form does this. That is why directors learn from psychologists and psychologists learn from directors

Color

Blue light is calmer than red light for humans. But why? And how do designers use this?

  • They say blue light is much more calming than red light for humans. This is not just aesthetic preference. There is something neurological going on
  • Red light triggers alertness and arousal. Blue light does the opposite. This maps to natural environments: red signals fire, blood, danger. Blue signals sky, water, calm
  • I should ask designers about this. How do they use color theory to manipulate mood in interfaces, spaces, and products? There must be established principles here
  • This connects back to the evolutionary story from Day 3. If emotions have survival purposes, then color responses probably do too. Red means threat. Blue means safety. The emotional response to color might be as hardwired as the response to a facial expression
  • Research for later: talk to designers about how color affects mood in practice. Look into the neuroscience of color perception and emotional response. How does this connect to the visual cortex work from the neuroscience experiment?

Food

We combine things to taste good. We have sugar cravings. But why does evolution want us to crave sugar?

  • We combine ingredients to make things taste good. That is obvious. But the more interesting question is: why do we have sugar cravings?
  • Sugar cravings must have an evolutionary advantage. In ancestral environments, sweet foods (ripe fruit, honey) were rare and calorie-dense. Craving them meant you ate them when available, storing energy for lean times. The craving is a survival mechanism from when calories were scarce
  • But now we live in a world of unlimited sugar. The craving that kept our ancestors alive is making us sick. Same pattern as the dopamine machines from Day 5. An evolved mechanism being exploited by modern abundance
  • Food also directly affects mood. Comfort food is not just a phrase. Eating triggers serotonin and dopamine release. There is a real neurochemical pathway from food to feeling good
  • Research for later: look into food science. Why exactly do sugar cravings exist at the neurological level? What is the evolutionary timeline? How does the gut-brain axis work in emotional regulation?

Music and Sound

Classical music in stores makes people buy expensive things. Music is a direct line to emotion

  • I already know that classical music played in stores makes people buy more expensive items. This is well documented. The music changes the mood, and the mood changes the spending behaviour
  • Music is a remarkably direct emotional tool. It bypasses rational thought entirely. You do not decide to feel sad when a minor key plays. You just feel it. That is not learned behaviour. Something about it is wired in
  • I want to read 'Musical Human' for this. There must be deep evolutionary reasons for why sound patterns trigger emotional responses. Is it connected to voice recognition? To environmental sounds that signalled danger or safety?
  • Music combines rhythm, melody, harmony, and timbre. Each one probably maps to a different emotional circuit. A fast rhythm increases heart rate. A low drone creates unease. These are not random associations
  • Research for later: read 'Musical Human' book. Understand the neuroscience of why music triggers emotion. How does the auditory cortex connect to the limbic system? Why does a minor key sound sad across cultures?

Chemistry: Serotonin, Dopamine, and Noradrenaline

Recreational drugs are hyper-focused tools for creating euphoria. They work because they hijack three key neurotransmitters

  • Recreational drugs are interesting from a scientific perspective because they are hyper-focused on creating euphoria. They are engineered (or naturally evolved) to be extremely good at producing acute happiness
  • There are three key neurotransmitters behind this: serotonin, dopamine, and noradrenaline. These are the main chemical messengers that regulate mood, motivation, and arousal
  • Dopamine is the reward and motivation chemical. It is not about pleasure itself but about the anticipation of pleasure. This connects directly to the joy discussion from Day 3. Dopamine is probably what makes joy work as a motivator
  • Serotonin is about mood stability and well-being. Low serotonin is linked to depression. Most antidepressants (SSRIs) work by increasing serotonin availability. It is the baseline mood chemical
  • Noradrenaline (also called norepinephrine) is about alertness and the stress response. It is the fight-or-flight chemical. This connects to the fear and anger survival purposes from Day 3
  • I want to understand how these three work together. When you feel happy, is it all three firing? When you feel anxious, is it noradrenaline overpowering serotonin? What is the interaction model?
  • Also: what other secretions are there? These three get the most attention, but the brain has many more chemical messengers. Endorphins (the pain-killing ones from the crying discussion in Day 3), oxytocin (the bonding one), GABA, glutamate. How do they all fit together?
  • Drugs hijack these systems. MDMA floods serotonin. Cocaine blocks dopamine reuptake. Amphetamines increase noradrenaline. Each drug targets a specific chemical pathway to produce a specific emotional effect. That is why different drugs feel different
  • Research for later: deep dive into how serotonin, dopamine, and noradrenaline interact. Map out all the major neurotransmitters and their emotional roles. Understand why drugs that target specific pathways produce specific emotional states

Film and Visuals

Film is the art form closest to how my visual brain works. It combines every emotional channel into one experience

  • Obviously, film and creative art are the closest to my form of visual brain. I think in images. Film speaks my language
  • What makes film unique is that it combines multiple emotional channels simultaneously: cinematic style, story line, music direction, color scheme. So many things go into a film that are not present in any other art form together
  • A painting has color and composition but no sound. Music has melody and rhythm but no visuals. Literature has story but no direct sensory input. Film has all of them at once. It is the most complete emotional delivery system humans have built
  • This is why directors are learning from psychologists. They need to understand how emotion works to manipulate it effectively. What camera angle creates unease? What color palette signals nostalgia? What musical cue triggers dread? These are not guesses. They are based on how the brain processes emotion
  • And psychologists are learning from directors. Because directors have accumulated massive amounts of data about what works emotionally. Decades of audience reactions, box office results, critical analysis. Psychologists studying emotion in a lab get small sample sizes. Directors working with audiences get millions of data points
  • This is a genuine feedback loop between art and science. Directors use psychology to make better films. Psychologists use films to study emotional responses at scale
  • Research for later: how do film directors use psychological principles in practice? What is the science behind cinematic techniques and emotional response? How does color grading affect mood perception in film?