Wired for speech

Infants’ language learning and processing rely largely on the same brain circuits that adults use. Recent studies have shown activity in left-hemisphere speech centres in newborns as young as 2 to 5 days.

Practice makes perfect learning

We repeatedly activate the same circuit of synapses when we practice a skill, game, or task. After several repetitions, the synapses being used subtly change – learning alters the structure of the brain.

The teenage brain – it’s complicated

The dramatic remodeling of the brain during adolescence holds tremendous opportunities for growth and learning but also appears to increase a teen’s vulnerability to the long-term effects of environmental influences such as stress and drug experimentation.

“Good” stress?

While chronic, un-managed stress can damage the brain and impair memory, mild stress – like an approaching deadline at work or school – can improve cognitive performance, focusing our attention on the task at hand.

I’ll sleep on it

Studies have suggested that sleep is essential for the maintenance of proper immune function, and also that it serves as a mental “down time” during which neurons can repair themselves and memories can be organized into long-term forms of storage.

The plastic brain

The brain is constantly changing in response to experiences, and retains its flexibility well into old age. The healthy brain loses relatively few neurons with age, and even regenerates new neurons regularly.

Just keep moving

In studies of those aged 90 and beyond, the level of exercise was correlated very strongly with longevity. An average of 45 minutes a day provides the most benefits, but even 15 minutes helps.

天生的語言功能

嬰幼兒學習語言時,他們使用的大腦部位與成人相若。最近有研究指出,大約在出生後的二至五天,左腦的言語中心已經開始有活動。

熟能生巧

無論是學習技能、玩遊戲或做工作,當我們反覆練習時,在大腦的同一回路上的突觸,都會不斷地被激活。經過多次的重複後,受激活的突觸會出現微妙的變化——這正好驗證了學習的過程確實能夠改變我們大腦的結構。

年輕人成長中的大腦較爲複雜

青春期的大腦正處於劇烈變化的階段,為青少年的成長及學習提供了巨大的可能性,但同時也會令青少年更容易受外在環境的影響,如周遭的壓力和毒品的誘惑,造成影響深遠的後果。

正面的壓力

雖然長期而缺乏妥善管理的壓力會損害大腦及記憶,但輕度的壓力,如臨近交功課或工作限期前出現的壓力,卻有助我們把注意力集中於手上的工作,提升認知表現。

睡眠與記憶

研究發現,睡眠不但是維持免疫功能運作正常不可或缺的活動,它更為我們的大腦提供了一個歇息的時段,讓大腦的神經細胞得以進行自我修復。同時,大腦也會利用睡眠時間整理白天的記憶,把它們轉爲長期記憶,儲存起來。

可塑性強

大腦會隨著經驗的累積而不斷變化,這種可塑性會一直持續到我們的老年。一個健康的大腦由於年齡增長所損秏的神經細胞,較一般大腦損耗要少,它甚至會定期增生新的神經細胞。

運動健康

一項以90歲以上人士為對象的研究顯示,運動量與長壽有很大關係。每天平均進行四十五分鐘運動,便能獲得最大的益處,就算只做十五分鐘也會有幫助。