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L-theanine acid is an amino acid in tea which affects
mental state directly. Along with other most popular tea types;
white, green, and black tea, Oolong tea also has sufficient Ltheanine
to relax the human brain. It apparently can reduce the
concern, blood pressure, dissolve the fat in the arteries, and
especially slow aging by substances against...
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Objectives:
We have investigated the efficacy of mono- and combined therapy with green tea extract (GTE) in mobilizing redox iron, scavenging reactive oxygen species (ROS), and improving insulin production in iron-loaded pancreatic cells.
Methods:
Rat insulinoma pancreatic β-cells were iron-loaded using culture medium supplemented with either fe...
Citations
... Different types of brainwaves[19] ...
Digital technology has absolutely transformed the teaching way in which learning is imparted to students. Unlike campus-based traditional lessons, e-learning makes learning simpler and beneficial for everyone in our society. This article summarizes teaching machines in its history by suggesting possible applications to education and its influence on the human brain. Authors briefly review teaching machines from mechanical to the digital era, describe Pressey and Skinner machines and as well as digital computers. This research also investigates how the human brain is wired to learning and recommends implementing e-learning environments for personal development in the education system. E-learning has become quite popular and appreciated among students and teachers worldwide because of its wide accessible benefits.
... Brainwave Frequencies and Descriptions [12]. ...
Oolong tea has L-theanine acid, which have an impact on human brain wave activity, especially for memorization and meditation. To describe the change in the mentioned states, it requires investigating theta and alpha waves. Higher attention frequency of brain waves indicates an improvement mental activity. Therefore, this study proposes a method to identify the effect level of L-theanine acid in Oo-long tea focused on changing memorization and meditation states individually. It performs the detection of electroencephalography (EEG), statistical analysis, and data classification with specific factors to digest the distinct effect levels. The human brain waves are detected via Neurosky Mindwave Mobile during the book reading state, comparing before drinking and after drinking conditions. The detected signals are converted into voltage values and analyzed a paired sample t-test for defining the difference between the two states statistically. Moreover, an artificial neu-ral network is used to classify the effect level with associated factors including gender, age, and body mass index (BMI) into low, medium, and high levels. It provides 90% accuracy of 17 participants with low, 13 participants with medium, and 6 participants with high levels. The experimental results show that the level of both memorization and meditation is statistically significantly increased after drinking. The instances are presented as scattered data separately. Although L-theanine in Oolong tea increases the mental state, it does not involve the specific factors in this study. Hence, it has different effects on a particular person.
... Fig. 1. NeuroSky Mindwave Mobile [18] It also works with the Neurosky Experimentor application for determining the value of attention and relaxation during the class. The attention meter algorithm of this equipment refers to the intensity of brain focusing, attention value. ...
Human has sustainability to concentrate about 45-50 minutes, approximately. The student who spent a long time during the class without a break is decreasing the brain learning ability. Taking mental breaks every 45 minutes is considered as stress reduction and prepared for better learning. However, a person has a different level to maintain a focus on learning, which is longer or shorter. The well-established information for manipulating this problem is necessary to support the instruction and teaching planning. Therefore, this study proposes the method to define the learning state of each student via brain cognitive performance identification and information technology innovations. The brain signals of students are recorded by electroencephalography (EEG) during studying. Due to the performance values are presented under the specific neuroscience criteria, the Decision Tree algorithm is chosen to perform learning state classification and description. The results present the several levels of cognitive performance including low, neutral, good, and high level, which is related to the learning ability of a student. The student who has low cognitive performance will be noticed to have a mental break before class ends appropriately. The classification method provides 87% of accuracy, which is acceptable to support the implementation of the decision tree with neuroscience in this study.
In a not-so-distant future, astronauts will venture to expand our civilization deeper into the solar system. Beyond the Earth-Moon system, the next palpable destination for human explorers is Mars. A roundtrip deep space mission to our planetary neighbor will take about 1000 days. Living in an isolated habitat for such a prolonged period of time may impact the crew's psychological wellbeing. When the astronauts travel to explore Mars for the first time, we may not foresee all the psychological risks the crew may face. In order to reduce these uncertainties, it may be necessary to develop tools and devices that could enhance the crew's wellbeing, by addressing their higher-level needs beyond basic physiological and psychological needs. In this paper we introduce a portable and personal inhaler device that produces geosmin-a molecule-from dry soil to generate petrichor that could help the crew with combatting depression. Inhaling petrichor could have a therapeutic effect on depression and boost certain chemicals in the brain, similar to serotonin and norepinephrine, thereby functioning as a natural antidepressant. It could even provide the comfort of home by triggering memories associated with Earth, while being far away in space. Hence being space-grounded. We consider this artifact to be a personal item that is created through considerations for human centered design, aesthetics, form and function, materiality, in addition to the therapeutic aspects by boosting certain chemicals in the brain. We discuss our processes of developing the device, including a study of petrichor, address psychological wellbeing, and describe the ideation process, prototyping, and demonstration of the device. We hope that our radical idea will stimulate thoughts and discussions for space habitat designs for the future of deep space exploration, focusing on the personal experiences of the astronauts.
