Sleep Disorders
Topic overview. Based on 33333 on-topic pages. [sleep-disorders directory]
Significant concepts: 
in fact, sleep disorder, breathing during sleep, high blood pressure, oxygen level, rem sleep stage, disrupt sleep, sleep medicine, occur during sleep quality, treat sleep, weight gain, circadian rhythm, sleep pattern, poor sleep environment, good sleep.
Most relevant domains
Most relevant domains based on cumulative page relevance to the topic as defined by example links and on the number of relevant domains linking to them.
| domain | | | | | | | |
|---|---|---|---|---|---|---|---|
http://sleepfoundation.org/  | 1 | 187 | 187 | 981 | 0.99 | 2.82 | sleepfoundation.org |
| http://oup.com/ | 2 | 326 | 359 | 1036 | 0.96 | 1.75 | oup.com |
| http://harvard.edu/ | 3 | 273 | 347 | 578 | 0.97 | 2.12 | harvard.edu |
| http://sleep.org/ | 4 | 257 | 258 | 479 | 0.99 | 1.66 | sleep.org |
| http://semanticscholar.org/ | 5 | 302 | 314 | 1966 | 0.97 | 1.32 | semanticscholar.org |
| http://sleepscholar.com/ | 6 | 300 | 300 | 425 | 1 | 1.2 | sleepscholar.com |
| http://sleepassociation.org/ | 7 | 222 | 222 | 420 | 0.99 | 1.6 | sleepassociation.org |
| http://sleepjunkies.com/ | 8 | 245 | 245 | 320 | 1 | 1.31 | sleepjunkies.com |
| http://alaskasleep.com/ | 9 | 259 | 259 | 354 | 1 | 1.22 | alaskasleep.com |
| http://thesleepdoctor.com/ | 10 | 242 | 242 | 851 | 0.99 | 1.3 | thesleepdoctor.com |
Atext
Most frequent phrases in anchor texts of links found in this topical graph .
| atext | | | |
|---|---|---|---|
| pubmed | 5847 | 389.02 | |
| crossref | 3540 | 234.12 | |
| sleep | 850 | 48.7 | |
| pubmedcentral | 681 | 45.45 | |
| read more | 564 | 39.1 | |
| sleep apnea | 494 | 34.07 | |
| insomnia | 496 | 31.77 | |
| view article | 437 | 29 | |
| study | 323 | 22.3 | |
| health | 544 | 22.26 |
Keyword ideas
Common word stems found in on-topic page titles.
| word | |
|---|---|
| sleep | |
| apnea | |
| disord | |
| health | |
| babi | |
| archiv | |
| medicin | |
| center | |
| night | |
| blog |
Popular pages
On-topic pages with highest topical PageRank.
Popular prospect pages
On-topic pages with highest topical PageRank having a few outgoing links and domains.
Hubs
Pages with most links towards other likely on-topic pages.
Domains with most linking domains
Relevant domains with most other relevant domains linking to them.
| domain | | | |
|---|---|---|---|
| http://nih.gov/ | 367 | 719.02 | nih.gov |
| http://amazon.com/ | 182 | 47.15 | amazon.com |
| http://sleepfoundation.org/ | 158 | 33.68 | sleepfoundation.org |
| http://youtube.com/ | 121 | 16.19 | youtube.com |
| http://aasmnet.org/ | 111 | 21.23 | aasmnet.org |
| http://facebook.com/ | 109 | 13.05 | facebook.com |
| http://huffingtonpost.com/ | 107 | 17.5 | huffingtonpost.com |
| http://webmd.com/ | 106 | 24.37 | webmd.com |
| http://nytimes.com/ | 102 | 12.69 | nytimes.com |
| http://wiley.com/ | 95 | 18.52 | wiley.com |