Caffeine is one of the most commonly consumed stimulants and is found in many items like coffee and energy drinks. Heart arrhythmias are irregular heart rhythms, which can occur when the electrical signals that contro...Caffeine is one of the most commonly consumed stimulants and is found in many items like coffee and energy drinks. Heart arrhythmias are irregular heart rhythms, which can occur when the electrical signals that control the heart’s rhythm are not functioning properly. Due to the stimulant properties of caffeine, it is theorized that caffeine consumption may cause tachycardias-like ventricular arrhythmias. This review article describes the relationship between caffeine intake and heart arrhythmias using a comprehensive Pub-Med search. A comprehensive search was conducted using the search terms “caffeine arrhythmia” which was conducted and a total of 26 search results were obtained. The majority of clinical studies suggest that there are no strong associations between caffeine consumption and arrhythmias. There is little evidence suggesting a direct relationship between caffeine and ventricular arrhythmias (relative Risk 1.00, 95% CI 0.94 - 1.06;13.5%, p = 0.32). Conversely, caffeine consumption has an inverse relationship with the risk of atrial fibrillation (p for overall trend = 0.015;p for nonlinearity = 0.27). Caffeine related deaths are uncommon, but certain groups such as infants, psychiatric patients, and athletes may have an increased risk of arrhythmias following caffeine consumption. Overall, caffeine consumption is not strongly linked to heart arrhythmias and limited studies suggest it may reduce the risk of arrhythmias. Although there is not a strong relationship between caffeine intake and heart arrhythmias, it does cause other cardiovascular problems including high blood pressure and hence should be consumed responsibly (40 - 180 mg/day).展开更多
The wireless networks have a very bright future in networks and communications because of which they have taken a high interest of the researchers.As the users increased the purpose to use MANETs,they also became more...The wireless networks have a very bright future in networks and communications because of which they have taken a high interest of the researchers.As the users increased the purpose to use MANETs,they also became more diverse and wide due to which better performance is needed in MANETs.QoS is needed for applications for an efficient communication and load balancing is a feature in the routing protocol that can help in a better use of the resources and can help to increase the performance of the network.We propose a new approach for load balancing in AOMDV routing protocol for MANETs that can enhance the network performance by selecting paths using the temporal load on the intermediate nodes and by distributing the load amongst the free nodes while transmission of data,which is proved by simulations in NS-2.展开更多
文摘Caffeine is one of the most commonly consumed stimulants and is found in many items like coffee and energy drinks. Heart arrhythmias are irregular heart rhythms, which can occur when the electrical signals that control the heart’s rhythm are not functioning properly. Due to the stimulant properties of caffeine, it is theorized that caffeine consumption may cause tachycardias-like ventricular arrhythmias. This review article describes the relationship between caffeine intake and heart arrhythmias using a comprehensive Pub-Med search. A comprehensive search was conducted using the search terms “caffeine arrhythmia” which was conducted and a total of 26 search results were obtained. The majority of clinical studies suggest that there are no strong associations between caffeine consumption and arrhythmias. There is little evidence suggesting a direct relationship between caffeine and ventricular arrhythmias (relative Risk 1.00, 95% CI 0.94 - 1.06;13.5%, p = 0.32). Conversely, caffeine consumption has an inverse relationship with the risk of atrial fibrillation (p for overall trend = 0.015;p for nonlinearity = 0.27). Caffeine related deaths are uncommon, but certain groups such as infants, psychiatric patients, and athletes may have an increased risk of arrhythmias following caffeine consumption. Overall, caffeine consumption is not strongly linked to heart arrhythmias and limited studies suggest it may reduce the risk of arrhythmias. Although there is not a strong relationship between caffeine intake and heart arrhythmias, it does cause other cardiovascular problems including high blood pressure and hence should be consumed responsibly (40 - 180 mg/day).
文摘The wireless networks have a very bright future in networks and communications because of which they have taken a high interest of the researchers.As the users increased the purpose to use MANETs,they also became more diverse and wide due to which better performance is needed in MANETs.QoS is needed for applications for an efficient communication and load balancing is a feature in the routing protocol that can help in a better use of the resources and can help to increase the performance of the network.We propose a new approach for load balancing in AOMDV routing protocol for MANETs that can enhance the network performance by selecting paths using the temporal load on the intermediate nodes and by distributing the load amongst the free nodes while transmission of data,which is proved by simulations in NS-2.
