Eating fish is known to have many health benefits.  In this age of Covid-19 with the accompanying life stressors, it seems that children and adults may need to include more fish in their diets.

New research (published Monday, April 19 2021 in the journal Molecular Psychiatry) reveals that a high daily dose of omega-3 was shown to suppress damage and boost protection at a cellular level during and after a stressful event. This means that these valuable oils can help the body resist the damaging effects of stress.  Participants in the study were found to produce less of the stress hormone cortisol and lower levels of a pro-inflammatory protein during a stressful event (which was giving them a 20-minute speech and maths subtraction task).

The benefit to adults was clear and supports the existing studies that omega-3 oils can help with depression and accelerated aging brought on by repeated stress.  It can also be concluded that children can benefit equally, especially if they are exposed to stressful situations – as many of them are in current and on-going circumstances. Those who find learning difficult or who struggle with behavioural issues are particularly vulnerable to stress.

The research used high doses of an omega-3 supplement.  There are good omega-3 supplements available on the market but many of the best products are expensive.  As parents, we would be wise to introduce fish to our children at an early age and then make sure that our families eat a variety of oil-rich fish at least a few times a week.  Cold water, fatty fish are the best, and we are lucky in that we have a few varieties at hand, including hake, snoek and sardines.  

But do beware of how you cook the fish.  Coating them in a thick batter and frying portions in unhealthy oils is not the best option.  Try to leave the skin on (the oils tend to be close to the skin) and explore the options of baking, steaming and grilling.  Fish cakes might be enjoyed too.  There are many suggestions online of how to encourage children to eat fish so those might help you overcome resistance by any family members, no matter their age.

 

Martin Doherty, writing for The Conversation, says that at the age of about four, children reach important milestones in brain development.

One of these is a huge improvement in understanding others’ thoughts and feelings. This is the start of empathy.  Another is in spatial thinking—understanding how objects are positioned and related. This is the beginning of the ability to read maps.

Martin and his colleague, Catherine Sayer, conducted a study with 175 two to five-year-olds to explore how children are able to use scale models to figure out where something is in the real world. At about four, children are able to use a scale model of a room to work out where something is. We thought that this might result from children’s understanding of how one thing can represent something else. But we actually found that four-year-olds’ ability to use scale models came from their spatial abilities.

At the same age, children start to understand that someone’s behaviour is due to what that person believes, not necessarily what is really the case. This has interesting consequences.

If you’ve played hide-and-seek with young children, you may have noticed that they aren’t always very good at it. They love the ritual of looking in all the wrong places first, but beforehand they may tell you where they are going to hide, hide in the same place every time, or not be especially hidden.

After their fourth birthday, they get much better at hide and seek. They understand that the seeker looks in the wrong places because they don’t know where the hider is.

At about three to four children also start to tell lies. They realize they can make someone believe something that isn’t true.

Understanding symbols

Martin’s earlier research with fellow psychologist Josef Perner suggests that four-year-olds don’t just start to understand how others’ minds work. Figuring this out is part of the development of an understanding of “representation”—that symbols, like thoughts, words, or pictures, can be used to stand for something else.

Children start to think about how words relate to objects. This means, for instance, knowing that “animal” can refer to something you already have a name for, such as “rabbit”. This might help children learn the new word.

Their ability to use a understand the components of pictures also improves around this age. Very young children use a lot of trial and error to complete a jigsaw, picking up random pieces to see if they fit. By the time they are about four years old, they start to use the picture as a guide, trying to connect lines and match bits of colour, while checking the guide picture on the box lid.

Developmental experiments

Another ability children develop at around four is using scale models. A classic set of developmental experiments involved a model of a regular household room. The real room had typical furniture—sofa, table, cupboard and so on—and the model had miniature versions laid out in the same way.

Children were shown where something was hidden in the model and told to find an object hidden in “the same place” in the room. Children of around four can find the object using the identical layouts. If shown a sticker under a particular chair in the model room, for example, they can go straight to the “same” chair in the other room. This is the fundamental understanding required to read maps.

Adults see scale models and maps as representations. Maps represent a town or a country. A scale model of, say, the Eiffel Tower represents the real thing. At first, Martin suspected children’s ability to use scale models is more evidence of understanding representation at this age.

He was wrong. Instead, the researchers found that this ability is based on a development in children’s spatial abilities that also occurs at about four. This is the ability to think about spaces and where objects are within them. Spatial abilities help with maths skills, and good spatial ability is linked to an interest in science, technology, engineering and mathematics.

Their experiment was simple. They compared the model room task with a test of understanding how representation works. The two abilities develop around the same age, but they found they were not related. Children who could do one task couldn’t necessarily do the other.

They also had a test of purely spatial ability. Children who passed the model room task also passed the spatial task. So it looks like the model room task relied on children‘s spatial thinking.

They don’t yet know why two important but apparently unrelated abilities arise at the same time. Perhaps it’s related to changes in the growing brain at this  interesting age.

Provided by The Conversation

Image supplied by Freepik.